Home / 654,840.19-903,670.86-368,360.20

Finding the Fourth Proportional to 654,840.19, 903,670.86 and 368,360.20

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Solution

The fourth proportional to 654,840.19, 903,670.86 and 368,360.20 is: 508,332.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,840.19 : 903,670.86 = 368,360.20 : x
  2. Step 2: Convert to fraction form
    654,840.19/903,670.86 = 368,360.20/x
  3. Step 3: Cross multiply
    654,840.19x = 903,670.86 × 368,360.20
  4. Step 4: Simplify right side
    654,840.19x = 332,876,378,723.77
  5. Step 5: Solve for x
    x = 332,876,378,723.77/654,840.19
  6. Step 6: Final answer
    x = 508,332.24

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Double scale
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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.