Home / 928,871.80-1,393,307.70-456,479.80

Finding the Fourth Proportional to 928,871.80, 1,393,307.70 and 456,479.80

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Solution

The fourth proportional to 928,871.80, 1,393,307.70 and 456,479.80 is: 684,719.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,871.80 : 1,393,307.70 = 456,479.80 : x
  2. Step 2: Convert to fraction form
    928,871.80/1,393,307.70 = 456,479.80/x
  3. Step 3: Cross multiply
    928,871.80x = 1,393,307.70 × 456,479.80
  4. Step 4: Simplify right side
    928,871.80x = 636,016,820,234.46
  5. Step 5: Solve for x
    x = 636,016,820,234.46/928,871.80
  6. Step 6: Final answer
    x = 684,719.70

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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.