Home / 711,947.20-1,067,920.80-446,526.40

Finding the Fourth Proportional to 711,947.20, 1,067,920.80 and 446,526.40

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Solution

The fourth proportional to 711,947.20, 1,067,920.80 and 446,526.40 is: 669,789.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,947.20 : 1,067,920.80 = 446,526.40 : x
  2. Step 2: Convert to fraction form
    711,947.20/1,067,920.80 = 446,526.40/x
  3. Step 3: Cross multiply
    711,947.20x = 1,067,920.80 × 446,526.40
  4. Step 4: Simplify right side
    711,947.20x = 476,854,830,309.12
  5. Step 5: Solve for x
    x = 476,854,830,309.12/711,947.20
  6. Step 6: Final answer
    x = 669,789.60

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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.