Home / 724,559.46-999,853.02-402,248.80

Finding the Fourth Proportional to 724,559.46, 999,853.02 and 402,248.80

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Solution

The fourth proportional to 724,559.46, 999,853.02 and 402,248.80 is: 555,081.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,559.46 : 999,853.02 = 402,248.80 : x
  2. Step 2: Convert to fraction form
    724,559.46/999,853.02 = 402,248.80/x
  3. Step 3: Cross multiply
    724,559.46x = 999,853.02 × 402,248.80
  4. Step 4: Simplify right side
    724,559.46x = 402,189,672,472.11
  5. Step 5: Solve for x
    x = 402,189,672,472.11/724,559.46
  6. Step 6: Final answer
    x = 555,081.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.