Home / 288,541.10-432,811.65-284,393.90

Finding the Fourth Proportional to 288,541.10, 432,811.65 and 284,393.90

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Solution

The fourth proportional to 288,541.10, 432,811.65 and 284,393.90 is: 426,590.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,541.10 : 432,811.65 = 284,393.90 : x
  2. Step 2: Convert to fraction form
    288,541.10/432,811.65 = 284,393.90/x
  3. Step 3: Cross multiply
    288,541.10x = 432,811.65 × 284,393.90
  4. Step 4: Simplify right side
    288,541.10x = 123,088,993,108.94
  5. Step 5: Solve for x
    x = 123,088,993,108.94/288,541.10
  6. Step 6: Final answer
    x = 426,590.85

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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.