Home / 788,020.58-1,087,521.33-439,215.26

Finding the Fourth Proportional to 788,020.58, 1,087,521.33 and 439,215.26

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Solution

The fourth proportional to 788,020.58, 1,087,521.33 and 439,215.26 is: 606,146.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,020.58 : 1,087,521.33 = 439,215.26 : x
  2. Step 2: Convert to fraction form
    788,020.58/1,087,521.33 = 439,215.26/x
  3. Step 3: Cross multiply
    788,020.58x = 1,087,521.33 × 439,215.26
  4. Step 4: Simplify right side
    788,020.58x = 477,655,963,711.50
  5. Step 5: Solve for x
    x = 477,655,963,711.50/788,020.58
  6. Step 6: Final answer
    x = 606,146.56

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Double scale
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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.