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Finding the Fourth Proportional to 970,875.60, 1,455,622.20 and 371,605.20

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Solution

The fourth proportional to 970,875.60, 1,455,622.20 and 371,605.20 is: 557,143.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,875.60 : 1,455,622.20 = 371,605.20 : x
  2. Step 2: Convert to fraction form
    970,875.60/1,455,622.20 = 371,605.20/x
  3. Step 3: Cross multiply
    970,875.60x = 1,455,622.20 × 371,605.20
  4. Step 4: Simplify right side
    970,875.60x = 540,916,778,755.44
  5. Step 5: Solve for x
    x = 540,916,778,755.44/970,875.60
  6. Step 6: Final answer
    x = 557,143.24

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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.