Home / 875,444.10-1,312,388.55-520,080.90

Finding the Fourth Proportional to 875,444.10, 1,312,388.55 and 520,080.90

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Solution

The fourth proportional to 875,444.10, 1,312,388.55 and 520,080.90 is: 779,659.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,444.10 : 1,312,388.55 = 520,080.90 : x
  2. Step 2: Convert to fraction form
    875,444.10/1,312,388.55 = 520,080.90/x
  3. Step 3: Cross multiply
    875,444.10x = 1,312,388.55 × 520,080.90
  4. Step 4: Simplify right side
    875,444.10x = 682,548,218,233.70
  5. Step 5: Solve for x
    x = 682,548,218,233.70/875,444.10
  6. Step 6: Final answer
    x = 779,659.40

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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.