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Finding the Fourth Proportional to 540,545.49, 745,973.82 and 358,944.30

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Solution

The fourth proportional to 540,545.49, 745,973.82 and 358,944.30 is: 495,357.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,545.49 : 745,973.82 = 358,944.30 : x
  2. Step 2: Convert to fraction form
    540,545.49/745,973.82 = 358,944.30/x
  3. Step 3: Cross multiply
    540,545.49x = 745,973.82 × 358,944.30
  4. Step 4: Simplify right side
    540,545.49x = 267,763,050,638.23
  5. Step 5: Solve for x
    x = 267,763,050,638.23/540,545.49
  6. Step 6: Final answer
    x = 495,357.11

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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.