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Finding the Fourth Proportional to 654,402.60, 981,603.90 and 607,746.60

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Solution

The fourth proportional to 654,402.60, 981,603.90 and 607,746.60 is: 911,619.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,402.60 : 981,603.90 = 607,746.60 : x
  2. Step 2: Convert to fraction form
    654,402.60/981,603.90 = 607,746.60/x
  3. Step 3: Cross multiply
    654,402.60x = 981,603.90 × 607,746.60
  4. Step 4: Simplify right side
    654,402.60x = 596,566,432,771.74
  5. Step 5: Solve for x
    x = 596,566,432,771.74/654,402.60
  6. Step 6: Final answer
    x = 911,619.90

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1.5x scale

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.