Home / 1,572,113.60-2,356,129.20-728,871.20

Finding the Fourth Proportional to 1,572,113.60, 2,356,129.20 and 728,871.20

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Solution

The fourth proportional to 1,572,113.60, 2,356,129.20 and 728,871.20 is: 1,092,360.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,572,113.60 : 2,356,129.20 = 728,871.20 : x
  2. Step 2: Convert to fraction form
    1,572,113.60/2,356,129.20 = 728,871.20/x
  3. Step 3: Cross multiply
    1,572,113.60x = 2,356,129.20 × 728,871.20
  4. Step 4: Simplify right side
    1,572,113.60x = 1,717,314,717,359.04
  5. Step 5: Solve for x
    x = 1,717,314,717,359.04/1,572,113.60
  6. Step 6: Final answer
    x = 1,092,360.45

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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.