Home / 743,465.36-1,025,948.76-421,168.88

Finding the Fourth Proportional to 743,465.36, 1,025,948.76 and 421,168.88

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Solution

The fourth proportional to 743,465.36, 1,025,948.76 and 421,168.88 is: 581,194.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,465.36 : 1,025,948.76 = 421,168.88 : x
  2. Step 2: Convert to fraction form
    743,465.36/1,025,948.76 = 421,168.88/x
  3. Step 3: Cross multiply
    743,465.36x = 1,025,948.76 × 421,168.88
  4. Step 4: Simplify right side
    743,465.36x = 432,097,690,186.59
  5. Step 5: Solve for x
    x = 432,097,690,186.59/743,465.36
  6. Step 6: Final answer
    x = 581,194.11

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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.