Home / 900,211.51-1,242,171.61-497,829.43

Finding the Fourth Proportional to 900,211.51, 1,242,171.61 and 497,829.43

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Solution

The fourth proportional to 900,211.51, 1,242,171.61 and 497,829.43 is: 686,938.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,211.51 : 1,242,171.61 = 497,829.43 : x
  2. Step 2: Convert to fraction form
    900,211.51/1,242,171.61 = 497,829.43/x
  3. Step 3: Cross multiply
    900,211.51x = 1,242,171.61 × 497,829.43
  4. Step 4: Simplify right side
    900,211.51x = 618,389,584,568.48
  5. Step 5: Solve for x
    x = 618,389,584,568.48/900,211.51
  6. Step 6: Final answer
    x = 686,938.10

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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.