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Finding the Fourth Proportional to 499,429.20, 750,767.76 and 400,669.68

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Solution

The fourth proportional to 499,429.20, 750,767.76 and 400,669.68 is: 602,307.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,429.20 : 750,767.76 = 400,669.68 : x
  2. Step 2: Convert to fraction form
    499,429.20/750,767.76 = 400,669.68/x
  3. Step 3: Cross multiply
    499,429.20x = 750,767.76 × 400,669.68
  4. Step 4: Simplify right side
    499,429.20x = 300,809,878,153.52
  5. Step 5: Solve for x
    x = 300,809,878,153.52/499,429.20
  6. Step 6: Final answer
    x = 602,307.35

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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.