Home / 824,640.12-1,137,984.12-485,130.24

Finding the Fourth Proportional to 824,640.12, 1,137,984.12 and 485,130.24

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Solution

The fourth proportional to 824,640.12, 1,137,984.12 and 485,130.24 is: 669,468.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,640.12 : 1,137,984.12 = 485,130.24 : x
  2. Step 2: Convert to fraction form
    824,640.12/1,137,984.12 = 485,130.24/x
  3. Step 3: Cross multiply
    824,640.12x = 1,137,984.12 × 485,130.24
  4. Step 4: Simplify right side
    824,640.12x = 552,070,509,251.79
  5. Step 5: Solve for x
    x = 552,070,509,251.79/824,640.12
  6. Step 6: Final answer
    x = 669,468.41

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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.