Home / 784,990.20-1,178,003.70-448,030.20

Finding the Fourth Proportional to 784,990.20, 1,178,003.70 and 448,030.20

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Solution

The fourth proportional to 784,990.20, 1,178,003.70 and 448,030.20 is: 672,341.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,990.20 : 1,178,003.70 = 448,030.20 : x
  2. Step 2: Convert to fraction form
    784,990.20/1,178,003.70 = 448,030.20/x
  3. Step 3: Cross multiply
    784,990.20x = 1,178,003.70 × 448,030.20
  4. Step 4: Simplify right side
    784,990.20x = 527,781,233,311.74
  5. Step 5: Solve for x
    x = 527,781,233,311.74/784,990.20
  6. Step 6: Final answer
    x = 672,341.17

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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.