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Finding the Fourth Proportional to 887,117, 1,224,221.46 and 484,709

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Solution

The fourth proportional to 887,117, 1,224,221.46 and 484,709 is: 668,898.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,117 : 1,224,221.46 = 484,709 : x
  2. Step 2: Convert to fraction form
    887,117/1,224,221.46 = 484,709/x
  3. Step 3: Cross multiply
    887,117x = 1,224,221.46 × 484,709
  4. Step 4: Simplify right side
    887,117x = 593,391,159,655.14
  5. Step 5: Solve for x
    x = 593,391,159,655.14/887,117
  6. Step 6: Final answer
    x = 668,898.42

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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.