Home / 905,675.60-1,249,834.95-497,819.24

Finding the Fourth Proportional to 905,675.60, 1,249,834.95 and 497,819.24

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Solution

The fourth proportional to 905,675.60, 1,249,834.95 and 497,819.24 is: 686,991.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,675.60 : 1,249,834.95 = 497,819.24 : x
  2. Step 2: Convert to fraction form
    905,675.60/1,249,834.95 = 497,819.24/x
  3. Step 3: Cross multiply
    905,675.60x = 1,249,834.95 × 497,819.24
  4. Step 4: Simplify right side
    905,675.60x = 622,191,878,685.26
  5. Step 5: Solve for x
    x = 622,191,878,685.26/905,675.60
  6. Step 6: Final answer
    x = 686,991.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.