Home / 760,660.75-1,140,564.52-521,045.20

Finding the Fourth Proportional to 760,660.75, 1,140,564.52 and 521,045.20

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Solution

The fourth proportional to 760,660.75, 1,140,564.52 and 521,045.20 is: 781,275.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,660.75 : 1,140,564.52 = 521,045.20 : x
  2. Step 2: Convert to fraction form
    760,660.75/1,140,564.52 = 521,045.20/x
  3. Step 3: Cross multiply
    760,660.75x = 1,140,564.52 × 521,045.20
  4. Step 4: Simplify right side
    760,660.75x = 594,285,668,436.30
  5. Step 5: Solve for x
    x = 594,285,668,436.30/760,660.75
  6. Step 6: Final answer
    x = 781,275.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.