Home / 990,577.80-1,487,421.90-570,673.80

Finding the Fourth Proportional to 990,577.80, 1,487,421.90 and 570,673.80

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Solution

The fourth proportional to 990,577.80, 1,487,421.90 and 570,673.80 is: 856,906.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,577.80 : 1,487,421.90 = 570,673.80 : x
  2. Step 2: Convert to fraction form
    990,577.80/1,487,421.90 = 570,673.80/x
  3. Step 3: Cross multiply
    990,577.80x = 1,487,421.90 × 570,673.80
  4. Step 4: Simplify right side
    990,577.80x = 848,832,707,876.22
  5. Step 5: Solve for x
    x = 848,832,707,876.22/990,577.80
  6. Step 6: Final answer
    x = 856,906.65

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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.