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Finding the Fourth Proportional to 472,800.60, 709,200.90 and 465,802.20

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Solution

The fourth proportional to 472,800.60, 709,200.90 and 465,802.20 is: 698,703.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,800.60 : 709,200.90 = 465,802.20 : x
  2. Step 2: Convert to fraction form
    472,800.60/709,200.90 = 465,802.20/x
  3. Step 3: Cross multiply
    472,800.60x = 709,200.90 × 465,802.20
  4. Step 4: Simplify right side
    472,800.60x = 330,347,339,461.98
  5. Step 5: Solve for x
    x = 330,347,339,461.98/472,800.60
  6. Step 6: Final answer
    x = 698,703.30

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Similar ratio
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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.