Home / 1,578,298.34-2,178,265.02-890,111.72

Finding the Fourth Proportional to 1,578,298.34, 2,178,265.02 and 890,111.72

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Solution

The fourth proportional to 1,578,298.34, 2,178,265.02 and 890,111.72 is: 1,228,474.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,298.34 : 2,178,265.02 = 890,111.72 : x
  2. Step 2: Convert to fraction form
    1,578,298.34/2,178,265.02 = 890,111.72/x
  3. Step 3: Cross multiply
    1,578,298.34x = 2,178,265.02 × 890,111.72
  4. Step 4: Simplify right side
    1,578,298.34x = 1,938,899,223,568.03
  5. Step 5: Solve for x
    x = 1,938,899,223,568.03/1,578,298.34
  6. Step 6: Final answer
    x = 1,228,474.47

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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.