Home / 676,142.90-1,012,740.51-338,594.84

Finding the Fourth Proportional to 676,142.90, 1,012,740.51 and 338,594.84

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Solution

The fourth proportional to 676,142.90, 1,012,740.51 and 338,594.84 is: 507,154.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,142.90 : 1,012,740.51 = 338,594.84 : x
  2. Step 2: Convert to fraction form
    676,142.90/1,012,740.51 = 338,594.84/x
  3. Step 3: Cross multiply
    676,142.90x = 1,012,740.51 × 338,594.84
  4. Step 4: Simplify right side
    676,142.90x = 342,908,710,944.97
  5. Step 5: Solve for x
    x = 342,908,710,944.97/676,142.90
  6. Step 6: Final answer
    x = 507,154.20

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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.