Home / 1,115,347.72-1,539,586.02-686,203.24

Finding the Fourth Proportional to 1,115,347.72, 1,539,586.02 and 686,203.24

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Solution

The fourth proportional to 1,115,347.72, 1,539,586.02 and 686,203.24 is: 947,210.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,347.72 : 1,539,586.02 = 686,203.24 : x
  2. Step 2: Convert to fraction form
    1,115,347.72/1,539,586.02 = 686,203.24/x
  3. Step 3: Cross multiply
    1,115,347.72x = 1,539,586.02 × 686,203.24
  4. Step 4: Simplify right side
    1,115,347.72x = 1,056,468,915,182.70
  5. Step 5: Solve for x
    x = 1,056,468,915,182.70/1,115,347.72
  6. Step 6: Final answer
    x = 947,210.36

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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.