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Finding the Fourth Proportional to 650,557.68, 976,953.24 and 399,313.50

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Solution

The fourth proportional to 650,557.68, 976,953.24 and 399,313.50 is: 599,655.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,557.68 : 976,953.24 = 399,313.50 : x
  2. Step 2: Convert to fraction form
    650,557.68/976,953.24 = 399,313.50/x
  3. Step 3: Cross multiply
    650,557.68x = 976,953.24 × 399,313.50
  4. Step 4: Simplify right side
    650,557.68x = 390,110,617,600.74
  5. Step 5: Solve for x
    x = 390,110,617,600.74/650,557.68
  6. Step 6: Final answer
    x = 599,655.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.