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Finding the Fourth Proportional to 586,287.18, 809,008.32 and 328,178.58

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Solution

The fourth proportional to 586,287.18, 809,008.32 and 328,178.58 is: 452,848.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,287.18 : 809,008.32 = 328,178.58 : x
  2. Step 2: Convert to fraction form
    586,287.18/809,008.32 = 328,178.58/x
  3. Step 3: Cross multiply
    586,287.18x = 809,008.32 × 328,178.58
  4. Step 4: Simplify right side
    586,287.18x = 265,499,201,665.79
  5. Step 5: Solve for x
    x = 265,499,201,665.79/586,287.18
  6. Step 6: Final answer
    x = 452,848.38

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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.