Home / 960,991.76-1,326,206.04-638,145.20

Finding the Fourth Proportional to 960,991.76, 1,326,206.04 and 638,145.20

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Solution

The fourth proportional to 960,991.76, 1,326,206.04 and 638,145.20 is: 880,665.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    960,991.76 : 1,326,206.04 = 638,145.20 : x
  2. Step 2: Convert to fraction form
    960,991.76/1,326,206.04 = 638,145.20/x
  3. Step 3: Cross multiply
    960,991.76x = 1,326,206.04 × 638,145.20
  4. Step 4: Simplify right side
    960,991.76x = 846,312,018,637.01
  5. Step 5: Solve for x
    x = 846,312,018,637.01/960,991.76
  6. Step 6: Final answer
    x = 880,665.22

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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.