Home / 1,078,541.80-1,617,812.70-517,287.40

Finding the Fourth Proportional to 1,078,541.80, 1,617,812.70 and 517,287.40

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Solution

The fourth proportional to 1,078,541.80, 1,617,812.70 and 517,287.40 is: 775,931.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,541.80 : 1,617,812.70 = 517,287.40 : x
  2. Step 2: Convert to fraction form
    1,078,541.80/1,617,812.70 = 517,287.40/x
  3. Step 3: Cross multiply
    1,078,541.80x = 1,617,812.70 × 517,287.40
  4. Step 4: Simplify right side
    1,078,541.80x = 836,874,125,269.98
  5. Step 5: Solve for x
    x = 836,874,125,269.98/1,078,541.80
  6. Step 6: Final answer
    x = 775,931.10

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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.