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Finding the Fourth Proportional to 540,372.16, 745,806.18 and 314,148.88

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Solution

The fourth proportional to 540,372.16, 745,806.18 and 314,148.88 is: 433,579.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,372.16 : 745,806.18 = 314,148.88 : x
  2. Step 2: Convert to fraction form
    540,372.16/745,806.18 = 314,148.88/x
  3. Step 3: Cross multiply
    540,372.16x = 745,806.18 × 314,148.88
  4. Step 4: Simplify right side
    540,372.16x = 234,294,176,144.08
  5. Step 5: Solve for x
    x = 234,294,176,144.08/540,372.16
  6. Step 6: Final answer
    x = 433,579.29

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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.