Home / 905,368.90-1,249,402.88-497,475.04

Finding the Fourth Proportional to 905,368.90, 1,249,402.88 and 497,475.04

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Solution

The fourth proportional to 905,368.90, 1,249,402.88 and 497,475.04 is: 686,512.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,368.90 : 1,249,402.88 = 497,475.04 : x
  2. Step 2: Convert to fraction form
    905,368.90/1,249,402.88 = 497,475.04/x
  3. Step 3: Cross multiply
    905,368.90x = 1,249,402.88 × 497,475.04
  4. Step 4: Simplify right side
    905,368.90x = 621,546,747,704.12
  5. Step 5: Solve for x
    x = 621,546,747,704.12/905,368.90
  6. Step 6: Final answer
    x = 686,512.15

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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.