Home / 828,748.40-1,242,247.80-472,996.40

Finding the Fourth Proportional to 828,748.40, 1,242,247.80 and 472,996.40

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Solution

The fourth proportional to 828,748.40, 1,242,247.80 and 472,996.40 is: 708,995.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,748.40 : 1,242,247.80 = 472,996.40 : x
  2. Step 2: Convert to fraction form
    828,748.40/1,242,247.80 = 472,996.40/x
  3. Step 3: Cross multiply
    828,748.40x = 1,242,247.80 × 472,996.40
  4. Step 4: Simplify right side
    828,748.40x = 587,578,737,307.92
  5. Step 5: Solve for x
    x = 587,578,737,307.92/828,748.40
  6. Step 6: Final answer
    x = 708,995.32

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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.