Home / 1,218,728.39-1,827,008.50-578,637.23

Finding the Fourth Proportional to 1,218,728.39, 1,827,008.50 and 578,637.23

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Solution

The fourth proportional to 1,218,728.39, 1,827,008.50 and 578,637.23 is: 867,441.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,728.39 : 1,827,008.50 = 578,637.23 : x
  2. Step 2: Convert to fraction form
    1,218,728.39/1,827,008.50 = 578,637.23/x
  3. Step 3: Cross multiply
    1,218,728.39x = 1,827,008.50 × 578,637.23
  4. Step 4: Simplify right side
    1,218,728.39x = 1,057,175,134,619.40
  5. Step 5: Solve for x
    x = 1,057,175,134,619.40/1,218,728.39
  6. Step 6: Final answer
    x = 867,441.13

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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.