Home / 916,988.80-1,265,419.89-549,673.42

Finding the Fourth Proportional to 916,988.80, 1,265,419.89 and 549,673.42

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Solution

The fourth proportional to 916,988.80, 1,265,419.89 and 549,673.42 is: 758,534.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,988.80 : 1,265,419.89 = 549,673.42 : x
  2. Step 2: Convert to fraction form
    916,988.80/1,265,419.89 = 549,673.42/x
  3. Step 3: Cross multiply
    916,988.80x = 1,265,419.89 × 549,673.42
  4. Step 4: Simplify right side
    916,988.80x = 695,567,678,672.32
  5. Step 5: Solve for x
    x = 695,567,678,672.32/916,988.80
  6. Step 6: Final answer
    x = 758,534.54

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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.