Home / 743,586.18-1,026,065.63-421,227.24

Finding the Fourth Proportional to 743,586.18, 1,026,065.63 and 421,227.24

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Solution

The fourth proportional to 743,586.18, 1,026,065.63 and 421,227.24 is: 581,246.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,586.18 : 1,026,065.63 = 421,227.24 : x
  2. Step 2: Convert to fraction form
    743,586.18/1,026,065.63 = 421,227.24/x
  3. Step 3: Cross multiply
    743,586.18x = 1,026,065.63 × 421,227.24
  4. Step 4: Simplify right side
    743,586.18x = 432,206,791,277.63
  5. Step 5: Solve for x
    x = 432,206,791,277.63/743,586.18
  6. Step 6: Final answer
    x = 581,246.40

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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.