Home / 925,535.70-1,387,647.45-420,338.70

Finding the Fourth Proportional to 925,535.70, 1,387,647.45 and 420,338.70

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Solution

The fourth proportional to 925,535.70, 1,387,647.45 and 420,338.70 is: 630,210.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,535.70 : 1,387,647.45 = 420,338.70 : x
  2. Step 2: Convert to fraction form
    925,535.70/1,387,647.45 = 420,338.70/x
  3. Step 3: Cross multiply
    925,535.70x = 1,387,647.45 × 420,338.70
  4. Step 4: Simplify right side
    925,535.70x = 583,281,925,191.32
  5. Step 5: Solve for x
    x = 583,281,925,191.32/925,535.70
  6. Step 6: Final answer
    x = 630,210.08

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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.