Home / 559,088.60-771,543.20-304,440.80

Finding the Fourth Proportional to 559,088.60, 771,543.20 and 304,440.80

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Solution

The fourth proportional to 559,088.60, 771,543.20 and 304,440.80 is: 420,128.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,088.60 : 771,543.20 = 304,440.80 : x
  2. Step 2: Convert to fraction form
    559,088.60/771,543.20 = 304,440.80/x
  3. Step 3: Cross multiply
    559,088.60x = 771,543.20 × 304,440.80
  4. Step 4: Simplify right side
    559,088.60x = 234,889,229,042.56
  5. Step 5: Solve for x
    x = 234,889,229,042.56/559,088.60
  6. Step 6: Final answer
    x = 420,128.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.