Home / 745,818.40-1,119,116.40-325,136.80

Finding the Fourth Proportional to 745,818.40, 1,119,116.40 and 325,136.80

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Solution

The fourth proportional to 745,818.40, 1,119,116.40 and 325,136.80 is: 487,874.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,818.40 : 1,119,116.40 = 325,136.80 : x
  2. Step 2: Convert to fraction form
    745,818.40/1,119,116.40 = 325,136.80/x
  3. Step 3: Cross multiply
    745,818.40x = 1,119,116.40 × 325,136.80
  4. Step 4: Simplify right side
    745,818.40x = 363,865,925,123.52
  5. Step 5: Solve for x
    x = 363,865,925,123.52/745,818.40
  6. Step 6: Final answer
    x = 487,874.70

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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.