Home / 724,320.98-1,086,491.76-218,886.18

Finding the Fourth Proportional to 724,320.98, 1,086,491.76 and 218,886.18

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Solution

The fourth proportional to 724,320.98, 1,086,491.76 and 218,886.18 is: 328,332.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,320.98 : 1,086,491.76 = 218,886.18 : x
  2. Step 2: Convert to fraction form
    724,320.98/1,086,491.76 = 218,886.18/x
  3. Step 3: Cross multiply
    724,320.98x = 1,086,491.76 × 218,886.18
  4. Step 4: Simplify right side
    724,320.98x = 237,818,030,947.88
  5. Step 5: Solve for x
    x = 237,818,030,947.88/724,320.98
  6. Step 6: Final answer
    x = 328,332.38

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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.