Home / 877,290.75-1,209,973.28-571,463.46

Finding the Fourth Proportional to 877,290.75, 1,209,973.28 and 571,463.46

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Solution

The fourth proportional to 877,290.75, 1,209,973.28 and 571,463.46 is: 788,171.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,290.75 : 1,209,973.28 = 571,463.46 : x
  2. Step 2: Convert to fraction form
    877,290.75/1,209,973.28 = 571,463.46/x
  3. Step 3: Cross multiply
    877,290.75x = 1,209,973.28 × 571,463.46
  4. Step 4: Simplify right side
    877,290.75x = 691,455,514,239.03
  5. Step 5: Solve for x
    x = 691,455,514,239.03/877,290.75
  6. Step 6: Final answer
    x = 788,171.44

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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.