Home / 730,384.56-1,007,856.84-501,139.20

Finding the Fourth Proportional to 730,384.56, 1,007,856.84 and 501,139.20

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Solution

The fourth proportional to 730,384.56, 1,007,856.84 and 501,139.20 is: 691,521.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,384.56 : 1,007,856.84 = 501,139.20 : x
  2. Step 2: Convert to fraction form
    730,384.56/1,007,856.84 = 501,139.20/x
  3. Step 3: Cross multiply
    730,384.56x = 1,007,856.84 × 501,139.20
  4. Step 4: Simplify right side
    730,384.56x = 505,076,570,512.13
  5. Step 5: Solve for x
    x = 505,076,570,512.13/730,384.56
  6. Step 6: Final answer
    x = 691,521.42

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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.