Home / 810,944.80-1,216,532.40-249,920.80

Finding the Fourth Proportional to 810,944.80, 1,216,532.40 and 249,920.80

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Solution

The fourth proportional to 810,944.80, 1,216,532.40 and 249,920.80 is: 374,916.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,944.80 : 1,216,532.40 = 249,920.80 : x
  2. Step 2: Convert to fraction form
    810,944.80/1,216,532.40 = 249,920.80/x
  3. Step 3: Cross multiply
    810,944.80x = 1,216,532.40 × 249,920.80
  4. Step 4: Simplify right side
    810,944.80x = 304,036,750,633.92
  5. Step 5: Solve for x
    x = 304,036,750,633.92/810,944.80
  6. Step 6: Final answer
    x = 374,916.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.