Home / 1,148,988.65-1,585,883.61-665,475.75

Finding the Fourth Proportional to 1,148,988.65, 1,585,883.61 and 665,475.75

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Solution

The fourth proportional to 1,148,988.65, 1,585,883.61 and 665,475.75 is: 918,518.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148,988.65 : 1,585,883.61 = 665,475.75 : x
  2. Step 2: Convert to fraction form
    1,148,988.65/1,585,883.61 = 665,475.75/x
  3. Step 3: Cross multiply
    1,148,988.65x = 1,585,883.61 × 665,475.75
  4. Step 4: Simplify right side
    1,148,988.65x = 1,055,367,084,777.46
  5. Step 5: Solve for x
    x = 1,055,367,084,777.46/1,148,988.65
  6. Step 6: Final answer
    x = 918,518.29

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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.