Home / 771,677.73-1,064,827.49-449,319.87

Finding the Fourth Proportional to 771,677.73, 1,064,827.49 and 449,319.87

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Solution

The fourth proportional to 771,677.73, 1,064,827.49 and 449,319.87 is: 620,010.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,677.73 : 1,064,827.49 = 449,319.87 : x
  2. Step 2: Convert to fraction form
    771,677.73/1,064,827.49 = 449,319.87/x
  3. Step 3: Cross multiply
    771,677.73x = 1,064,827.49 × 449,319.87
  4. Step 4: Simplify right side
    771,677.73x = 478,448,147,132.63
  5. Step 5: Solve for x
    x = 478,448,147,132.63/771,677.73
  6. Step 6: Final answer
    x = 620,010.31

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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.