Home / 724,058.40-1,085,569.20-303,117.60

Finding the Fourth Proportional to 724,058.40, 1,085,569.20 and 303,117.60

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Solution

The fourth proportional to 724,058.40, 1,085,569.20 and 303,117.60 is: 454,459.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,058.40 : 1,085,569.20 = 303,117.60 : x
  2. Step 2: Convert to fraction form
    724,058.40/1,085,569.20 = 303,117.60/x
  3. Step 3: Cross multiply
    724,058.40x = 1,085,569.20 × 303,117.60
  4. Step 4: Simplify right side
    724,058.40x = 329,055,130,537.92
  5. Step 5: Solve for x
    x = 329,055,130,537.92/724,058.40
  6. Step 6: Final answer
    x = 454,459.38

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.