Home / 760,821.22-1,140,804.30-521,205.30

Finding the Fourth Proportional to 760,821.22, 1,140,804.30 and 521,205.30

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Solution

The fourth proportional to 760,821.22, 1,140,804.30 and 521,205.30 is: 781,515.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,821.22 : 1,140,804.30 = 521,205.30 : x
  2. Step 2: Convert to fraction form
    760,821.22/1,140,804.30 = 521,205.30/x
  3. Step 3: Cross multiply
    760,821.22x = 1,140,804.30 × 521,205.30
  4. Step 4: Simplify right side
    760,821.22x = 594,593,247,422.79
  5. Step 5: Solve for x
    x = 594,593,247,422.79/760,821.22
  6. Step 6: Final answer
    x = 781,515.07

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1.5x scale

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.