Home / 875,981.20-1,313,664.60-455,117.20

Finding the Fourth Proportional to 875,981.20, 1,313,664.60 and 455,117.20

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Solution

The fourth proportional to 875,981.20, 1,313,664.60 and 455,117.20 is: 682,516.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,981.20 : 1,313,664.60 = 455,117.20 : x
  2. Step 2: Convert to fraction form
    875,981.20/1,313,664.60 = 455,117.20/x
  3. Step 3: Cross multiply
    875,981.20x = 1,313,664.60 × 455,117.20
  4. Step 4: Simplify right side
    875,981.20x = 597,871,354,491.12
  5. Step 5: Solve for x
    x = 597,871,354,491.12/875,981.20
  6. Step 6: Final answer
    x = 682,516.19

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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.