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Finding the Fourth Proportional to 536,545.80, 740,221.02 and 345,670.50

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Solution

The fourth proportional to 536,545.80, 740,221.02 and 345,670.50 is: 476,888.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,545.80 : 740,221.02 = 345,670.50 : x
  2. Step 2: Convert to fraction form
    536,545.80/740,221.02 = 345,670.50/x
  3. Step 3: Cross multiply
    536,545.80x = 740,221.02 × 345,670.50
  4. Step 4: Simplify right side
    536,545.80x = 255,872,570,093.91
  5. Step 5: Solve for x
    x = 255,872,570,093.91/536,545.80
  6. Step 6: Final answer
    x = 476,888.59

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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.