Home / 983,712.60-1,475,568.90-352,690.20

Finding the Fourth Proportional to 983,712.60, 1,475,568.90 and 352,690.20

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Solution

The fourth proportional to 983,712.60, 1,475,568.90 and 352,690.20 is: 529,035.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,712.60 : 1,475,568.90 = 352,690.20 : x
  2. Step 2: Convert to fraction form
    983,712.60/1,475,568.90 = 352,690.20/x
  3. Step 3: Cross multiply
    983,712.60x = 1,475,568.90 × 352,690.20
  4. Step 4: Simplify right side
    983,712.60x = 520,418,690,454.78
  5. Step 5: Solve for x
    x = 520,418,690,454.78/983,712.60
  6. Step 6: Final answer
    x = 529,035.30

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Double scale
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Similar ratio
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1.5x scale

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.