Home / 1,078,577.40-1,617,866.10-447,425.40

Finding the Fourth Proportional to 1,078,577.40, 1,617,866.10 and 447,425.40

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Solution

The fourth proportional to 1,078,577.40, 1,617,866.10 and 447,425.40 is: 671,138.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,577.40 : 1,617,866.10 = 447,425.40 : x
  2. Step 2: Convert to fraction form
    1,078,577.40/1,617,866.10 = 447,425.40/x
  3. Step 3: Cross multiply
    1,078,577.40x = 1,617,866.10 × 447,425.40
  4. Step 4: Simplify right side
    1,078,577.40x = 723,874,386,938.94
  5. Step 5: Solve for x
    x = 723,874,386,938.94/1,078,577.40
  6. Step 6: Final answer
    x = 671,138.10

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Double scale
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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.