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Finding the Fourth Proportional to 418,779.94, 578,018.95 and 237,597.92

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Solution

The fourth proportional to 418,779.94, 578,018.95 and 237,597.92 is: 327,943.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,779.94 : 578,018.95 = 237,597.92 : x
  2. Step 2: Convert to fraction form
    418,779.94/578,018.95 = 237,597.92/x
  3. Step 3: Cross multiply
    418,779.94x = 578,018.95 × 237,597.92
  4. Step 4: Simplify right side
    418,779.94x = 137,336,096,756.49
  5. Step 5: Solve for x
    x = 137,336,096,756.49/418,779.94
  6. Step 6: Final answer
    x = 327,943.35

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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.