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Finding the Fourth Proportional to 610,959.52, 843,056.40 and 339,018.40

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Solution

The fourth proportional to 610,959.52, 843,056.40 and 339,018.40 is: 467,807.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,959.52 : 843,056.40 = 339,018.40 : x
  2. Step 2: Convert to fraction form
    610,959.52/843,056.40 = 339,018.40/x
  3. Step 3: Cross multiply
    610,959.52x = 843,056.40 × 339,018.40
  4. Step 4: Simplify right side
    610,959.52x = 285,811,631,837.76
  5. Step 5: Solve for x
    x = 285,811,631,837.76/610,959.52
  6. Step 6: Final answer
    x = 467,807.80

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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.