Home / 875,446.60-1,312,392.30-520,083.40

Finding the Fourth Proportional to 875,446.60, 1,312,392.30 and 520,083.40

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Solution

The fourth proportional to 875,446.60, 1,312,392.30 and 520,083.40 is: 779,663.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,446.60 : 1,312,392.30 = 520,083.40 : x
  2. Step 2: Convert to fraction form
    875,446.60/1,312,392.30 = 520,083.40/x
  3. Step 3: Cross multiply
    875,446.60x = 1,312,392.30 × 520,083.40
  4. Step 4: Simplify right side
    875,446.60x = 682,553,449,517.82
  5. Step 5: Solve for x
    x = 682,553,449,517.82/875,446.60
  6. Step 6: Final answer
    x = 779,663.15

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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.