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Finding the Fourth Proportional to 540,420.70, 745,767.60 and 295,394.52

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Solution

The fourth proportional to 540,420.70, 745,767.60 and 295,394.52 is: 407,637.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,420.70 : 745,767.60 = 295,394.52 : x
  2. Step 2: Convert to fraction form
    540,420.70/745,767.60 = 295,394.52/x
  3. Step 3: Cross multiply
    540,420.70x = 745,767.60 × 295,394.52
  4. Step 4: Simplify right side
    540,420.70x = 220,295,662,233.55
  5. Step 5: Solve for x
    x = 220,295,662,233.55/540,420.70
  6. Step 6: Final answer
    x = 407,637.35

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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.