Home / 766,809.45-1,058,173.47-480,487.41

Finding the Fourth Proportional to 766,809.45, 1,058,173.47 and 480,487.41

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Solution

The fourth proportional to 766,809.45, 1,058,173.47 and 480,487.41 is: 663,057.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,809.45 : 1,058,173.47 = 480,487.41 : x
  2. Step 2: Convert to fraction form
    766,809.45/1,058,173.47 = 480,487.41/x
  3. Step 3: Cross multiply
    766,809.45x = 1,058,173.47 × 480,487.41
  4. Step 4: Simplify right side
    766,809.45x = 508,439,029,931.01
  5. Step 5: Solve for x
    x = 508,439,029,931.01/766,809.45
  6. Step 6: Final answer
    x = 663,057.86

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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.