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Finding the Fourth Proportional to 888,988.60, 1,333,482.90 and 490,857.40

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Solution

The fourth proportional to 888,988.60, 1,333,482.90 and 490,857.40 is: 736,286.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,988.60 : 1,333,482.90 = 490,857.40 : x
  2. Step 2: Convert to fraction form
    888,988.60/1,333,482.90 = 490,857.40/x
  3. Step 3: Cross multiply
    888,988.60x = 1,333,482.90 × 490,857.40
  4. Step 4: Simplify right side
    888,988.60x = 654,549,949,238.46
  5. Step 5: Solve for x
    x = 654,549,949,238.46/888,988.60
  6. Step 6: Final answer
    x = 736,286.10

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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.