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Finding the Fourth Proportional to 530,473.02, 730,658.17 and 407,730.69

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Solution

The fourth proportional to 530,473.02, 730,658.17 and 407,730.69 is: 561,596.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,473.02 : 730,658.17 = 407,730.69 : x
  2. Step 2: Convert to fraction form
    530,473.02/730,658.17 = 407,730.69/x
  3. Step 3: Cross multiply
    530,473.02x = 730,658.17 × 407,730.69
  4. Step 4: Simplify right side
    530,473.02x = 297,911,759,808.24
  5. Step 5: Solve for x
    x = 297,911,759,808.24/530,473.02
  6. Step 6: Final answer
    x = 561,596.44

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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.