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Finding the Fourth Proportional to 882,671.30, 1,218,050.52 and 500,689.88

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Solution

The fourth proportional to 882,671.30, 1,218,050.52 and 500,689.88 is: 690,931.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,671.30 : 1,218,050.52 = 500,689.88 : x
  2. Step 2: Convert to fraction form
    882,671.30/1,218,050.52 = 500,689.88/x
  3. Step 3: Cross multiply
    882,671.30x = 1,218,050.52 × 500,689.88
  4. Step 4: Simplify right side
    882,671.30x = 609,865,568,692.74
  5. Step 5: Solve for x
    x = 609,865,568,692.74/882,671.30
  6. Step 6: Final answer
    x = 690,931.69

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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.