Home / 987,071.45-1,362,159.11-534,362.45

Finding the Fourth Proportional to 987,071.45, 1,362,159.11 and 534,362.45

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Solution

The fourth proportional to 987,071.45, 1,362,159.11 and 534,362.45 is: 737,420.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,071.45 : 1,362,159.11 = 534,362.45 : x
  2. Step 2: Convert to fraction form
    987,071.45/1,362,159.11 = 534,362.45/x
  3. Step 3: Cross multiply
    987,071.45x = 1,362,159.11 × 534,362.45
  4. Step 4: Simplify right side
    987,071.45x = 727,886,676,637.61
  5. Step 5: Solve for x
    x = 727,886,676,637.61/987,071.45
  6. Step 6: Final answer
    x = 737,420.45

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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.