Home / 1,029,851.81-1,421,279.25-571,110.11

Finding the Fourth Proportional to 1,029,851.81, 1,421,279.25 and 571,110.11

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Solution

The fourth proportional to 1,029,851.81, 1,421,279.25 and 571,110.11 is: 788,178.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,851.81 : 1,421,279.25 = 571,110.11 : x
  2. Step 2: Convert to fraction form
    1,029,851.81/1,421,279.25 = 571,110.11/x
  3. Step 3: Cross multiply
    1,029,851.81x = 1,421,279.25 × 571,110.11
  4. Step 4: Simplify right side
    1,029,851.81x = 811,706,941,701.82
  5. Step 5: Solve for x
    x = 811,706,941,701.82/1,029,851.81
  6. Step 6: Final answer
    x = 788,178.39

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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.