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Finding the Fourth Proportional to 1,304,932.96, 1,799,978.70 and 942,888.16

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Solution

The fourth proportional to 1,304,932.96, 1,799,978.70 and 942,888.16 is: 1,300,586.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,304,932.96 : 1,799,978.70 = 942,888.16 : x
  2. Step 2: Convert to fraction form
    1,304,932.96/1,799,978.70 = 942,888.16/x
  3. Step 3: Cross multiply
    1,304,932.96x = 1,799,978.70 × 942,888.16
  4. Step 4: Simplify right side
    1,304,932.96x = 1,697,178,604,482.19
  5. Step 5: Solve for x
    x = 1,697,178,604,482.19/1,304,932.96
  6. Step 6: Final answer
    x = 1,300,586.82

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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.