Home / 1,078,045.80-1,617,068.70-990,954.60

Finding the Fourth Proportional to 1,078,045.80, 1,617,068.70 and 990,954.60

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Solution

The fourth proportional to 1,078,045.80, 1,617,068.70 and 990,954.60 is: 1,486,431.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,045.80 : 1,617,068.70 = 990,954.60 : x
  2. Step 2: Convert to fraction form
    1,078,045.80/1,617,068.70 = 990,954.60/x
  3. Step 3: Cross multiply
    1,078,045.80x = 1,617,068.70 × 990,954.60
  4. Step 4: Simplify right side
    1,078,045.80x = 1,602,441,666,781.02
  5. Step 5: Solve for x
    x = 1,602,441,666,781.02/1,078,045.80
  6. Step 6: Final answer
    x = 1,486,431.90

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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.