Home / 869,382.60-1,302,000.30-425,632.20

Finding the Fourth Proportional to 869,382.60, 1,302,000.30 and 425,632.20

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Solution

The fourth proportional to 869,382.60, 1,302,000.30 and 425,632.20 is: 637,433.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,382.60 : 1,302,000.30 = 425,632.20 : x
  2. Step 2: Convert to fraction form
    869,382.60/1,302,000.30 = 425,632.20/x
  3. Step 3: Cross multiply
    869,382.60x = 1,302,000.30 × 425,632.20
  4. Step 4: Simplify right side
    869,382.60x = 554,173,252,089.66
  5. Step 5: Solve for x
    x = 554,173,252,089.66/869,382.60
  6. Step 6: Final answer
    x = 637,433.11

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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.