Home / 760,340.52-1,140,726.24-380,802.87

Finding the Fourth Proportional to 760,340.52, 1,140,726.24 and 380,802.87

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Solution

The fourth proportional to 760,340.52, 1,140,726.24 and 380,802.87 is: 571,312.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,340.52 : 1,140,726.24 = 380,802.87 : x
  2. Step 2: Convert to fraction form
    760,340.52/1,140,726.24 = 380,802.87/x
  3. Step 3: Cross multiply
    760,340.52x = 1,140,726.24 × 380,802.87
  4. Step 4: Simplify right side
    760,340.52x = 434,391,826,076.31
  5. Step 5: Solve for x
    x = 434,391,826,076.31/760,340.52
  6. Step 6: Final answer
    x = 571,312.21

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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.