Home / 760,710.24-1,141,078.32-287,618.40

Finding the Fourth Proportional to 760,710.24, 1,141,078.32 and 287,618.40

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Solution

The fourth proportional to 760,710.24, 1,141,078.32 and 287,618.40 is: 431,432.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,710.24 : 1,141,078.32 = 287,618.40 : x
  2. Step 2: Convert to fraction form
    760,710.24/1,141,078.32 = 287,618.40/x
  3. Step 3: Cross multiply
    760,710.24x = 1,141,078.32 × 287,618.40
  4. Step 4: Simplify right side
    760,710.24x = 328,195,120,673.09
  5. Step 5: Solve for x
    x = 328,195,120,673.09/760,710.24
  6. Step 6: Final answer
    x = 431,432.50

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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.