Home / 724,441.60-1,086,856.80-646,098.40

Finding the Fourth Proportional to 724,441.60, 1,086,856.80 and 646,098.40

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Solution

The fourth proportional to 724,441.60, 1,086,856.80 and 646,098.40 is: 969,320.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,441.60 : 1,086,856.80 = 646,098.40 : x
  2. Step 2: Convert to fraction form
    724,441.60/1,086,856.80 = 646,098.40/x
  3. Step 3: Cross multiply
    724,441.60x = 1,086,856.80 × 646,098.40
  4. Step 4: Simplify right side
    724,441.60x = 702,216,439,509.12
  5. Step 5: Solve for x
    x = 702,216,439,509.12/724,441.60
  6. Step 6: Final answer
    x = 969,320.98

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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.