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Finding the Fourth Proportional to 651,078.54, 898,266.74 and 379,088.87

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Solution

The fourth proportional to 651,078.54, 898,266.74 and 379,088.87 is: 523,013.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,078.54 : 898,266.74 = 379,088.87 : x
  2. Step 2: Convert to fraction form
    651,078.54/898,266.74 = 379,088.87/x
  3. Step 3: Cross multiply
    651,078.54x = 898,266.74 × 379,088.87
  4. Step 4: Simplify right side
    651,078.54x = 340,522,917,038.41
  5. Step 5: Solve for x
    x = 340,522,917,038.41/651,078.54
  6. Step 6: Final answer
    x = 523,013.58

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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.