Home / 915,782.40-1,373,803.20-284,630.40

Finding the Fourth Proportional to 915,782.40, 1,373,803.20 and 284,630.40

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Solution

The fourth proportional to 915,782.40, 1,373,803.20 and 284,630.40 is: 426,985.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,782.40 : 1,373,803.20 = 284,630.40 : x
  2. Step 2: Convert to fraction form
    915,782.40/1,373,803.20 = 284,630.40/x
  3. Step 3: Cross multiply
    915,782.40x = 1,373,803.20 × 284,630.40
  4. Step 4: Simplify right side
    915,782.40x = 391,026,154,337.28
  5. Step 5: Solve for x
    x = 391,026,154,337.28/915,782.40
  6. Step 6: Final answer
    x = 426,985.88

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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.