Home / 515,264.20-711,064.90-314,060.20

Finding the Fourth Proportional to 515,264.20, 711,064.90 and 314,060.20

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Solution

The fourth proportional to 515,264.20, 711,064.90 and 314,060.20 is: 433,403.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,264.20 : 711,064.90 = 314,060.20 : x
  2. Step 2: Convert to fraction form
    515,264.20/711,064.90 = 314,060.20/x
  3. Step 3: Cross multiply
    515,264.20x = 711,064.90 × 314,060.20
  4. Step 4: Simplify right side
    515,264.20x = 223,317,184,706.98
  5. Step 5: Solve for x
    x = 223,317,184,706.98/515,264.20
  6. Step 6: Final answer
    x = 433,403.26

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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.