Home / 855,316.12-1,283,401.86-382,340.92

Finding the Fourth Proportional to 855,316.12, 1,283,401.86 and 382,340.92

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Solution

The fourth proportional to 855,316.12, 1,283,401.86 and 382,340.92 is: 573,702.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,316.12 : 1,283,401.86 = 382,340.92 : x
  2. Step 2: Convert to fraction form
    855,316.12/1,283,401.86 = 382,340.92/x
  3. Step 3: Cross multiply
    855,316.12x = 1,283,401.86 × 382,340.92
  4. Step 4: Simplify right side
    855,316.12x = 490,697,047,882.11
  5. Step 5: Solve for x
    x = 490,697,047,882.11/855,316.12
  6. Step 6: Final answer
    x = 573,702.56

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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.