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Finding the Fourth Proportional to 970,011.68, 1,338,405 and 588,132.32

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Solution

The fourth proportional to 970,011.68, 1,338,405 and 588,132.32 is: 811,494.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,011.68 : 1,338,405 = 588,132.32 : x
  2. Step 2: Convert to fraction form
    970,011.68/1,338,405 = 588,132.32/x
  3. Step 3: Cross multiply
    970,011.68x = 1,338,405 × 588,132.32
  4. Step 4: Simplify right side
    970,011.68x = 787,159,237,749.60
  5. Step 5: Solve for x
    x = 787,159,237,749.60/970,011.68
  6. Step 6: Final answer
    x = 811,494.60

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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.