Home / 875,990.16-1,208,832.48-488,785.45

Finding the Fourth Proportional to 875,990.16, 1,208,832.48 and 488,785.45

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Solution

The fourth proportional to 875,990.16, 1,208,832.48 and 488,785.45 is: 674,504.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,990.16 : 1,208,832.48 = 488,785.45 : x
  2. Step 2: Convert to fraction form
    875,990.16/1,208,832.48 = 488,785.45/x
  3. Step 3: Cross multiply
    875,990.16x = 1,208,832.48 × 488,785.45
  4. Step 4: Simplify right side
    875,990.16x = 590,859,727,711.42
  5. Step 5: Solve for x
    x = 590,859,727,711.42/875,990.16
  6. Step 6: Final answer
    x = 674,504.98

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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.