Home / 772,242.30-1,158,363.45-440,466.30

Finding the Fourth Proportional to 772,242.30, 1,158,363.45 and 440,466.30

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Solution

The fourth proportional to 772,242.30, 1,158,363.45 and 440,466.30 is: 660,699.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,242.30 : 1,158,363.45 = 440,466.30 : x
  2. Step 2: Convert to fraction form
    772,242.30/1,158,363.45 = 440,466.30/x
  3. Step 3: Cross multiply
    772,242.30x = 1,158,363.45 × 440,466.30
  4. Step 4: Simplify right side
    772,242.30x = 510,220,062,876.74
  5. Step 5: Solve for x
    x = 510,220,062,876.74/772,242.30
  6. Step 6: Final answer
    x = 660,699.45

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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.