Home / 738,014.84-1,018,480.17-415,705.72

Finding the Fourth Proportional to 738,014.84, 1,018,480.17 and 415,705.72

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Solution

The fourth proportional to 738,014.84, 1,018,480.17 and 415,705.72 is: 573,684.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,014.84 : 1,018,480.17 = 415,705.72 : x
  2. Step 2: Convert to fraction form
    738,014.84/1,018,480.17 = 415,705.72/x
  3. Step 3: Cross multiply
    738,014.84x = 1,018,480.17 × 415,705.72
  4. Step 4: Simplify right side
    738,014.84x = 423,388,027,283.17
  5. Step 5: Solve for x
    x = 423,388,027,283.17/738,014.84
  6. Step 6: Final answer
    x = 573,684.98

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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.