Home / 1,155,320.91-1,594,220.19-638,992.76

Finding the Fourth Proportional to 1,155,320.91, 1,594,220.19 and 638,992.76

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Solution

The fourth proportional to 1,155,320.91, 1,594,220.19 and 638,992.76 is: 881,742.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,320.91 : 1,594,220.19 = 638,992.76 : x
  2. Step 2: Convert to fraction form
    1,155,320.91/1,594,220.19 = 638,992.76/x
  3. Step 3: Cross multiply
    1,155,320.91x = 1,594,220.19 × 638,992.76
  4. Step 4: Simplify right side
    1,155,320.91x = 1,018,695,151,284.72
  5. Step 5: Solve for x
    x = 1,018,695,151,284.72/1,155,320.91
  6. Step 6: Final answer
    x = 881,742.16

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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.