Home / 1,578,208.47-2,178,061.29-890,013.03

Finding the Fourth Proportional to 1,578,208.47, 2,178,061.29 and 890,013.03

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Solution

The fourth proportional to 1,578,208.47, 2,178,061.29 and 890,013.03 is: 1,228,293.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,208.47 : 2,178,061.29 = 890,013.03 : x
  2. Step 2: Convert to fraction form
    1,578,208.47/2,178,061.29 = 890,013.03/x
  3. Step 3: Cross multiply
    1,578,208.47x = 2,178,061.29 × 890,013.03
  4. Step 4: Simplify right side
    1,578,208.47x = 1,938,502,928,238.61
  5. Step 5: Solve for x
    x = 1,938,502,928,238.61/1,578,208.47
  6. Step 6: Final answer
    x = 1,228,293.32

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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.