Home / 875,450.10-1,312,397.55-520,086.90

Finding the Fourth Proportional to 875,450.10, 1,312,397.55 and 520,086.90

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Solution

The fourth proportional to 875,450.10, 1,312,397.55 and 520,086.90 is: 779,668.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,450.10 : 1,312,397.55 = 520,086.90 : x
  2. Step 2: Convert to fraction form
    875,450.10/1,312,397.55 = 520,086.90/x
  3. Step 3: Cross multiply
    875,450.10x = 1,312,397.55 × 520,086.90
  4. Step 4: Simplify right side
    875,450.10x = 682,560,773,347.10
  5. Step 5: Solve for x
    x = 682,560,773,347.10/875,450.10
  6. Step 6: Final answer
    x = 779,668.39

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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.