Home / 1,207,271.62-1,666,048.10-663,407.55

Finding the Fourth Proportional to 1,207,271.62, 1,666,048.10 and 663,407.55

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Solution

The fourth proportional to 1,207,271.62, 1,666,048.10 and 663,407.55 is: 915,509.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,271.62 : 1,666,048.10 = 663,407.55 : x
  2. Step 2: Convert to fraction form
    1,207,271.62/1,666,048.10 = 663,407.55/x
  3. Step 3: Cross multiply
    1,207,271.62x = 1,666,048.10 × 663,407.55
  4. Step 4: Simplify right side
    1,207,271.62x = 1,105,268,888,203.16
  5. Step 5: Solve for x
    x = 1,105,268,888,203.16/1,207,271.62
  6. Step 6: Final answer
    x = 915,509.71

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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.