Home / 743,442.23-1,025,957.50-421,145.43

Finding the Fourth Proportional to 743,442.23, 1,025,957.50 and 421,145.43

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Solution

The fourth proportional to 743,442.23, 1,025,957.50 and 421,145.43 is: 581,184.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,442.23 : 1,025,957.50 = 421,145.43 : x
  2. Step 2: Convert to fraction form
    743,442.23/1,025,957.50 = 421,145.43/x
  3. Step 3: Cross multiply
    743,442.23x = 1,025,957.50 × 421,145.43
  4. Step 4: Simplify right side
    743,442.23x = 432,077,312,499.23
  5. Step 5: Solve for x
    x = 432,077,312,499.23/743,442.23
  6. Step 6: Final answer
    x = 581,184.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.