Home / 828,402.19-1,240,610.37-472,336.72

Finding the Fourth Proportional to 828,402.19, 1,240,610.37 and 472,336.72

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Solution

The fourth proportional to 828,402.19, 1,240,610.37 and 472,336.72 is: 707,368.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,402.19 : 1,240,610.37 = 472,336.72 : x
  2. Step 2: Convert to fraction form
    828,402.19/1,240,610.37 = 472,336.72/x
  3. Step 3: Cross multiply
    828,402.19x = 1,240,610.37 × 472,336.72
  4. Step 4: Simplify right side
    828,402.19x = 585,985,829,862.26
  5. Step 5: Solve for x
    x = 585,985,829,862.26/828,402.19
  6. Step 6: Final answer
    x = 707,368.76

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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.