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Finding the Fourth Proportional to 623,521.04, 860,385.92 and 351,572.73

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Solution

The fourth proportional to 623,521.04, 860,385.92 and 351,572.73 is: 485,129.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,521.04 : 860,385.92 = 351,572.73 : x
  2. Step 2: Convert to fraction form
    623,521.04/860,385.92 = 351,572.73/x
  3. Step 3: Cross multiply
    623,521.04x = 860,385.92 × 351,572.73
  4. Step 4: Simplify right side
    623,521.04x = 302,488,221,763.65
  5. Step 5: Solve for x
    x = 302,488,221,763.65/623,521.04
  6. Step 6: Final answer
    x = 485,129.14

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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.