Home / 1,512,289.80-2,268,434.70-980,411.40

Finding the Fourth Proportional to 1,512,289.80, 2,268,434.70 and 980,411.40

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Solution

The fourth proportional to 1,512,289.80, 2,268,434.70 and 980,411.40 is: 1,470,617.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512,289.80 : 2,268,434.70 = 980,411.40 : x
  2. Step 2: Convert to fraction form
    1,512,289.80/2,268,434.70 = 980,411.40/x
  3. Step 3: Cross multiply
    1,512,289.80x = 2,268,434.70 × 980,411.40
  4. Step 4: Simplify right side
    1,512,289.80x = 2,223,999,240,035.58
  5. Step 5: Solve for x
    x = 2,223,999,240,035.58/1,512,289.80
  6. Step 6: Final answer
    x = 1,470,617.10

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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.