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Finding the Fourth Proportional to 489,345.30, 732,635.55 and 475,521.30

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Solution

The fourth proportional to 489,345.30, 732,635.55 and 475,521.30 is: 711,938.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,345.30 : 732,635.55 = 475,521.30 : x
  2. Step 2: Convert to fraction form
    489,345.30/732,635.55 = 475,521.30/x
  3. Step 3: Cross multiply
    489,345.30x = 732,635.55 × 475,521.30
  4. Step 4: Simplify right side
    489,345.30x = 348,383,809,162.22
  5. Step 5: Solve for x
    x = 348,383,809,162.22/489,345.30
  6. Step 6: Final answer
    x = 711,938.60

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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.