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Finding the Fourth Proportional to 970,700.10, 1,455,358.95 and 371,429.70

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Solution

The fourth proportional to 970,700.10, 1,455,358.95 and 371,429.70 is: 556,880.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,700.10 : 1,455,358.95 = 371,429.70 : x
  2. Step 2: Convert to fraction form
    970,700.10/1,455,358.95 = 371,429.70/x
  3. Step 3: Cross multiply
    970,700.10x = 1,455,358.95 × 371,429.70
  4. Step 4: Simplify right side
    970,700.10x = 540,563,538,190.82
  5. Step 5: Solve for x
    x = 540,563,538,190.82/970,700.10
  6. Step 6: Final answer
    x = 556,880.07

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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.