Home / 905,204.98-1,249,204.88-497,333.24

Finding the Fourth Proportional to 905,204.98, 1,249,204.88 and 497,333.24

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Solution

The fourth proportional to 905,204.98, 1,249,204.88 and 497,333.24 is: 686,331.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,204.98 : 1,249,204.88 = 497,333.24 : x
  2. Step 2: Convert to fraction form
    905,204.98/1,249,204.88 = 497,333.24/x
  3. Step 3: Cross multiply
    905,204.98x = 1,249,204.88 × 497,333.24
  4. Step 4: Simplify right side
    905,204.98x = 621,271,110,394.21
  5. Step 5: Solve for x
    x = 621,271,110,394.21/905,204.98
  6. Step 6: Final answer
    x = 686,331.96

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Double scale
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Similar ratio
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1.5x scale

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.