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Finding the Fourth Proportional to 637,764.51, 880,114.95 and 351,284.59

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Solution

The fourth proportional to 637,764.51, 880,114.95 and 351,284.59 is: 484,772.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,764.51 : 880,114.95 = 351,284.59 : x
  2. Step 2: Convert to fraction form
    637,764.51/880,114.95 = 351,284.59/x
  3. Step 3: Cross multiply
    637,764.51x = 880,114.95 × 351,284.59
  4. Step 4: Simplify right side
    637,764.51x = 309,170,820,463.76
  5. Step 5: Solve for x
    x = 309,170,820,463.76/637,764.51
  6. Step 6: Final answer
    x = 484,772.69

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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.