Home / 766,987.18-1,058,447.55-427,477.30

Finding the Fourth Proportional to 766,987.18, 1,058,447.55 and 427,477.30

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Solution

The fourth proportional to 766,987.18, 1,058,447.55 and 427,477.30 is: 589,921.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,987.18 : 1,058,447.55 = 427,477.30 : x
  2. Step 2: Convert to fraction form
    766,987.18/1,058,447.55 = 427,477.30/x
  3. Step 3: Cross multiply
    766,987.18x = 1,058,447.55 × 427,477.30
  4. Step 4: Simplify right side
    766,987.18x = 452,462,299,822.54
  5. Step 5: Solve for x
    x = 452,462,299,822.54/766,987.18
  6. Step 6: Final answer
    x = 589,921.60

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.