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Finding the Fourth Proportional to 970,575.80, 1,455,863.70 and 907,590.20

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Solution

The fourth proportional to 970,575.80, 1,455,863.70 and 907,590.20 is: 1,361,385.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,575.80 : 1,455,863.70 = 907,590.20 : x
  2. Step 2: Convert to fraction form
    970,575.80/1,455,863.70 = 907,590.20/x
  3. Step 3: Cross multiply
    970,575.80x = 1,455,863.70 × 907,590.20
  4. Step 4: Simplify right side
    970,575.80x = 1,321,327,626,655.74
  5. Step 5: Solve for x
    x = 1,321,327,626,655.74/970,575.80
  6. Step 6: Final answer
    x = 1,361,385.30

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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.