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Finding the Fourth Proportional to 663,066.80, 992,267.40 and 607,079.60

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Solution

The fourth proportional to 663,066.80, 992,267.40 and 607,079.60 is: 908,483.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,066.80 : 992,267.40 = 607,079.60 : x
  2. Step 2: Convert to fraction form
    663,066.80/992,267.40 = 607,079.60/x
  3. Step 3: Cross multiply
    663,066.80x = 992,267.40 × 607,079.60
  4. Step 4: Simplify right side
    663,066.80x = 602,385,296,285.04
  5. Step 5: Solve for x
    x = 602,385,296,285.04/663,066.80
  6. Step 6: Final answer
    x = 908,483.57

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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.