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Finding the Fourth Proportional to 529,168.40, 730,231.44 and 314,302.76

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Solution

The fourth proportional to 529,168.40, 730,231.44 and 314,302.76 is: 433,725.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,168.40 : 730,231.44 = 314,302.76 : x
  2. Step 2: Convert to fraction form
    529,168.40/730,231.44 = 314,302.76/x
  3. Step 3: Cross multiply
    529,168.40x = 730,231.44 × 314,302.76
  4. Step 4: Simplify right side
    529,168.40x = 229,513,757,030.77
  5. Step 5: Solve for x
    x = 229,513,757,030.77/529,168.40
  6. Step 6: Final answer
    x = 433,725.36

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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.