Home / 989,867.81-1,366,017.59-537,158.81

Finding the Fourth Proportional to 989,867.81, 1,366,017.59 and 537,158.81

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Solution

The fourth proportional to 989,867.81, 1,366,017.59 and 537,158.81 is: 741,279.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,867.81 : 1,366,017.59 = 537,158.81 : x
  2. Step 2: Convert to fraction form
    989,867.81/1,366,017.59 = 537,158.81/x
  3. Step 3: Cross multiply
    989,867.81x = 1,366,017.59 × 537,158.81
  4. Step 4: Simplify right side
    989,867.81x = 733,768,383,812.72
  5. Step 5: Solve for x
    x = 733,768,383,812.72/989,867.81
  6. Step 6: Final answer
    x = 741,279.16

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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.