Home / 765,603.90-1,056,511.35-426,064.86

Finding the Fourth Proportional to 765,603.90, 1,056,511.35 and 426,064.86

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Solution

The fourth proportional to 765,603.90, 1,056,511.35 and 426,064.86 is: 587,957.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,603.90 : 1,056,511.35 = 426,064.86 : x
  2. Step 2: Convert to fraction form
    765,603.90/1,056,511.35 = 426,064.86/x
  3. Step 3: Cross multiply
    765,603.90x = 1,056,511.35 × 426,064.86
  4. Step 4: Simplify right side
    765,603.90x = 450,142,360,426.16
  5. Step 5: Solve for x
    x = 450,142,360,426.16/765,603.90
  6. Step 6: Final answer
    x = 587,957.25

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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.