Home / 1,030,307.56-1,422,514.74-643,711.48

Finding the Fourth Proportional to 1,030,307.56, 1,422,514.74 and 643,711.48

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Solution

The fourth proportional to 1,030,307.56, 1,422,514.74 and 643,711.48 is: 888,753.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030,307.56 : 1,422,514.74 = 643,711.48 : x
  2. Step 2: Convert to fraction form
    1,030,307.56/1,422,514.74 = 643,711.48/x
  3. Step 3: Cross multiply
    1,030,307.56x = 1,422,514.74 × 643,711.48
  4. Step 4: Simplify right side
    1,030,307.56x = 915,689,068,607.22
  5. Step 5: Solve for x
    x = 915,689,068,607.22/1,030,307.56
  6. Step 6: Final answer
    x = 888,753.13

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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.