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Finding the Fourth Proportional to 540,424.49, 745,788.76 and 295,409.61

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Solution

The fourth proportional to 540,424.49, 745,788.76 and 295,409.61 is: 407,666.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,424.49 : 745,788.76 = 295,409.61 : x
  2. Step 2: Convert to fraction form
    540,424.49/745,788.76 = 295,409.61/x
  3. Step 3: Cross multiply
    540,424.49x = 745,788.76 × 295,409.61
  4. Step 4: Simplify right side
    540,424.49x = 220,313,165,995.46
  5. Step 5: Solve for x
    x = 220,313,165,995.46/540,424.49
  6. Step 6: Final answer
    x = 407,666.88

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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.