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Finding the Fourth Proportional to 528,333.48, 729,100.20 and 301,983.84

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Solution

The fourth proportional to 528,333.48, 729,100.20 and 301,983.84 is: 416,737.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,333.48 : 729,100.20 = 301,983.84 : x
  2. Step 2: Convert to fraction form
    528,333.48/729,100.20 = 301,983.84/x
  3. Step 3: Cross multiply
    528,333.48x = 729,100.20 × 301,983.84
  4. Step 4: Simplify right side
    528,333.48x = 220,176,478,140.77
  5. Step 5: Solve for x
    x = 220,176,478,140.77/528,333.48
  6. Step 6: Final answer
    x = 416,737.70

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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.