Home / 879,481.54-1,213,689.02-497,500.12

Finding the Fourth Proportional to 879,481.54, 1,213,689.02 and 497,500.12

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Solution

The fourth proportional to 879,481.54, 1,213,689.02 and 497,500.12 is: 686,552.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,481.54 : 1,213,689.02 = 497,500.12 : x
  2. Step 2: Convert to fraction form
    879,481.54/1,213,689.02 = 497,500.12/x
  3. Step 3: Cross multiply
    879,481.54x = 1,213,689.02 × 497,500.12
  4. Step 4: Simplify right side
    879,481.54x = 603,810,427,570.96
  5. Step 5: Solve for x
    x = 603,810,427,570.96/879,481.54
  6. Step 6: Final answer
    x = 686,552.70

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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.