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Finding the Fourth Proportional to 654,981.74, 903,801.66 and 368,495.66

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Solution

The fourth proportional to 654,981.74, 903,801.66 and 368,495.66 is: 508,482.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,981.74 : 903,801.66 = 368,495.66 : x
  2. Step 2: Convert to fraction form
    654,981.74/903,801.66 = 368,495.66/x
  3. Step 3: Cross multiply
    654,981.74x = 903,801.66 × 368,495.66
  4. Step 4: Simplify right side
    654,981.74x = 333,046,989,210.80
  5. Step 5: Solve for x
    x = 333,046,989,210.80/654,981.74
  6. Step 6: Final answer
    x = 508,482.86

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Double scale
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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.