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Finding the Fourth Proportional to 536,460.18, 740,303.15 and 291,438.61

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Solution

The fourth proportional to 536,460.18, 740,303.15 and 291,438.61 is: 402,178.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,460.18 : 740,303.15 = 291,438.61 : x
  2. Step 2: Convert to fraction form
    536,460.18/740,303.15 = 291,438.61/x
  3. Step 3: Cross multiply
    536,460.18x = 740,303.15 × 291,438.61
  4. Step 4: Simplify right side
    536,460.18x = 215,752,917,706.67
  5. Step 5: Solve for x
    x = 215,752,917,706.67/536,460.18
  6. Step 6: Final answer
    x = 402,178.81

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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.