Home / 1,381,449.90-2,072,455.10-434,600.40

Finding the Fourth Proportional to 1,381,449.90, 2,072,455.10 and 434,600.40

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Solution

The fourth proportional to 1,381,449.90, 2,072,455.10 and 434,600.40 is: 651,988.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,449.90 : 2,072,455.10 = 434,600.40 : x
  2. Step 2: Convert to fraction form
    1,381,449.90/2,072,455.10 = 434,600.40/x
  3. Step 3: Cross multiply
    1,381,449.90x = 2,072,455.10 × 434,600.40
  4. Step 4: Simplify right side
    1,381,449.90x = 900,689,815,442.04
  5. Step 5: Solve for x
    x = 900,689,815,442.04/1,381,449.90
  6. Step 6: Final answer
    x = 651,988.77

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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.