Home / 991,585.75-1,487,379.12-654,547.63

Finding the Fourth Proportional to 991,585.75, 1,487,379.12 and 654,547.63

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Solution

The fourth proportional to 991,585.75, 1,487,379.12 and 654,547.63 is: 981,821.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,585.75 : 1,487,379.12 = 654,547.63 : x
  2. Step 2: Convert to fraction form
    991,585.75/1,487,379.12 = 654,547.63/x
  3. Step 3: Cross multiply
    991,585.75x = 1,487,379.12 × 654,547.63
  4. Step 4: Simplify right side
    991,585.75x = 973,560,474,523.32
  5. Step 5: Solve for x
    x = 973,560,474,523.32/991,585.75
  6. Step 6: Final answer
    x = 981,821.77

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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.