Home / 918,349.87-1,267,666.65-689,568.07

Finding the Fourth Proportional to 918,349.87, 1,267,666.65 and 689,568.07

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Solution

The fourth proportional to 918,349.87, 1,267,666.65 and 689,568.07 is: 951,862.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,349.87 : 1,267,666.65 = 689,568.07 : x
  2. Step 2: Convert to fraction form
    918,349.87/1,267,666.65 = 689,568.07/x
  3. Step 3: Cross multiply
    918,349.87x = 1,267,666.65 × 689,568.07
  4. Step 4: Simplify right side
    918,349.87x = 874,142,445,243.87
  5. Step 5: Solve for x
    x = 874,142,445,243.87/918,349.87
  6. Step 6: Final answer
    x = 951,862.11

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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.