Home / 887,431.78-1,331,746.65-347,621.11

Finding the Fourth Proportional to 887,431.78, 1,331,746.65 and 347,621.11

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Solution

The fourth proportional to 887,431.78, 1,331,746.65 and 347,621.11 is: 521,666.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,431.78 : 1,331,746.65 = 347,621.11 : x
  2. Step 2: Convert to fraction form
    887,431.78/1,331,746.65 = 347,621.11/x
  3. Step 3: Cross multiply
    887,431.78x = 1,331,746.65 × 347,621.11
  4. Step 4: Simplify right side
    887,431.78x = 462,943,248,711.78
  5. Step 5: Solve for x
    x = 462,943,248,711.78/887,431.78
  6. Step 6: Final answer
    x = 521,666.29

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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.