Home / 912,139.60-1,258,744.20-504,266.80

Finding the Fourth Proportional to 912,139.60, 1,258,744.20 and 504,266.80

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Solution

The fourth proportional to 912,139.60, 1,258,744.20 and 504,266.80 is: 695,883.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,139.60 : 1,258,744.20 = 504,266.80 : x
  2. Step 2: Convert to fraction form
    912,139.60/1,258,744.20 = 504,266.80/x
  3. Step 3: Cross multiply
    912,139.60x = 1,258,744.20 × 504,266.80
  4. Step 4: Simplify right side
    912,139.60x = 634,742,909,752.56
  5. Step 5: Solve for x
    x = 634,742,909,752.56/912,139.60
  6. Step 6: Final answer
    x = 695,883.51

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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.