Home / 678,752.10-1,017,868.95-205,280.10

Finding the Fourth Proportional to 678,752.10, 1,017,868.95 and 205,280.10

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Solution

The fourth proportional to 678,752.10, 1,017,868.95 and 205,280.10 is: 307,841.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,752.10 : 1,017,868.95 = 205,280.10 : x
  2. Step 2: Convert to fraction form
    678,752.10/1,017,868.95 = 205,280.10/x
  3. Step 3: Cross multiply
    678,752.10x = 1,017,868.95 × 205,280.10
  4. Step 4: Simplify right side
    678,752.10x = 208,948,239,842.90
  5. Step 5: Solve for x
    x = 208,948,239,842.90/678,752.10
  6. Step 6: Final answer
    x = 307,841.76

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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.