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Finding the Fourth Proportional to 637,106.62, 879,379.85 and 375,690.24

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Solution

The fourth proportional to 637,106.62, 879,379.85 and 375,690.24 is: 518,554.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,106.62 : 879,379.85 = 375,690.24 : x
  2. Step 2: Convert to fraction form
    637,106.62/879,379.85 = 375,690.24/x
  3. Step 3: Cross multiply
    637,106.62x = 879,379.85 × 375,690.24
  4. Step 4: Simplify right side
    637,106.62x = 330,374,426,897.66
  5. Step 5: Solve for x
    x = 330,374,426,897.66/637,106.62
  6. Step 6: Final answer
    x = 518,554.38

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Half scale
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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.