Home / 875,237.90-1,312,856.85-520,069.10

Finding the Fourth Proportional to 875,237.90, 1,312,856.85 and 520,069.10

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Solution

The fourth proportional to 875,237.90, 1,312,856.85 and 520,069.10 is: 780,103.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,237.90 : 1,312,856.85 = 520,069.10 : x
  2. Step 2: Convert to fraction form
    875,237.90/1,312,856.85 = 520,069.10/x
  3. Step 3: Cross multiply
    875,237.90x = 1,312,856.85 × 520,069.10
  4. Step 4: Simplify right side
    875,237.90x = 682,776,280,408.34
  5. Step 5: Solve for x
    x = 682,776,280,408.34/875,237.90
  6. Step 6: Final answer
    x = 780,103.65

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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.