Home / 916,888.80-1,265,243.12-508,958.56

Finding the Fourth Proportional to 916,888.80, 1,265,243.12 and 508,958.56

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Solution

The fourth proportional to 916,888.80, 1,265,243.12 and 508,958.56 is: 702,327.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,888.80 : 1,265,243.12 = 508,958.56 : x
  2. Step 2: Convert to fraction form
    916,888.80/1,265,243.12 = 508,958.56/x
  3. Step 3: Cross multiply
    916,888.80x = 1,265,243.12 × 508,958.56
  4. Step 4: Simplify right side
    916,888.80x = 643,956,316,405.11
  5. Step 5: Solve for x
    x = 643,956,316,405.11/916,888.80
  6. Step 6: Final answer
    x = 702,327.61

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1.5x scale

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.