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Finding the Fourth Proportional to 637,261.17, 879,443.62 and 346,858.71

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Solution

The fourth proportional to 637,261.17, 879,443.62 and 346,858.71 is: 478,677.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,261.17 : 879,443.62 = 346,858.71 : x
  2. Step 2: Convert to fraction form
    637,261.17/879,443.62 = 346,858.71/x
  3. Step 3: Cross multiply
    637,261.17x = 879,443.62 × 346,858.71
  4. Step 4: Simplify right side
    637,261.17x = 305,042,679,550.93
  5. Step 5: Solve for x
    x = 305,042,679,550.93/637,261.17
  6. Step 6: Final answer
    x = 478,677.65

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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.