Home / 828,478.96-1,142,592.78-570,767.20

Finding the Fourth Proportional to 828,478.96, 1,142,592.78 and 570,767.20

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Solution

The fourth proportional to 828,478.96, 1,142,592.78 and 570,767.20 is: 787,170.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,478.96 : 1,142,592.78 = 570,767.20 : x
  2. Step 2: Convert to fraction form
    828,478.96/1,142,592.78 = 570,767.20/x
  3. Step 3: Cross multiply
    828,478.96x = 1,142,592.78 × 570,767.20
  4. Step 4: Simplify right side
    828,478.96x = 652,154,481,780.82
  5. Step 5: Solve for x
    x = 652,154,481,780.82/828,478.96
  6. Step 6: Final answer
    x = 787,170.84

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Double scale
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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.