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Finding the Fourth Proportional to 530,149.74, 732,048.09 and 491,685.27

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Solution

The fourth proportional to 530,149.74, 732,048.09 and 491,685.27 is: 678,935.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,149.74 : 732,048.09 = 491,685.27 : x
  2. Step 2: Convert to fraction form
    530,149.74/732,048.09 = 491,685.27/x
  3. Step 3: Cross multiply
    530,149.74x = 732,048.09 × 491,685.27
  4. Step 4: Simplify right side
    530,149.74x = 359,937,262,784.63
  5. Step 5: Solve for x
    x = 359,937,262,784.63/530,149.74
  6. Step 6: Final answer
    x = 678,935.09

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1.5x scale

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.