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Finding the Fourth Proportional to 543,210, 749,664.83 and 301,492.59

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Solution

The fourth proportional to 543,210, 749,664.83 and 301,492.59 is: 416,079.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,210 : 749,664.83 = 301,492.59 : x
  2. Step 2: Convert to fraction form
    543,210/749,664.83 = 301,492.59/x
  3. Step 3: Cross multiply
    543,210x = 749,664.83 × 301,492.59
  4. Step 4: Simplify right side
    543,210x = 226,018,391,228.61
  5. Step 5: Solve for x
    x = 226,018,391,228.61/543,210
  6. Step 6: Final answer
    x = 416,079.22

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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.