Home / 847,363-1,270,931.28-314,811.40

Finding the Fourth Proportional to 847,363, 1,270,931.28 and 314,811.40

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Solution

The fourth proportional to 847,363, 1,270,931.28 and 314,811.40 is: 472,175.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,363 : 1,270,931.28 = 314,811.40 : x
  2. Step 2: Convert to fraction form
    847,363/1,270,931.28 = 314,811.40/x
  3. Step 3: Cross multiply
    847,363x = 1,270,931.28 × 314,811.40
  4. Step 4: Simplify right side
    847,363x = 400,103,655,560.59
  5. Step 5: Solve for x
    x = 400,103,655,560.59/847,363
  6. Step 6: Final answer
    x = 472,175.04

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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.