Home / 520,056.10-780,026.55-146,116.90

Finding the Fourth Proportional to 520,056.10, 780,026.55 and 146,116.90

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Solution

The fourth proportional to 520,056.10, 780,026.55 and 146,116.90 is: 219,159.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,056.10 : 780,026.55 = 146,116.90 : x
  2. Step 2: Convert to fraction form
    520,056.10/780,026.55 = 146,116.90/x
  3. Step 3: Cross multiply
    520,056.10x = 780,026.55 × 146,116.90
  4. Step 4: Simplify right side
    520,056.10x = 113,975,061,403.70
  5. Step 5: Solve for x
    x = 113,975,061,403.70/520,056.10
  6. Step 6: Final answer
    x = 219,159.17

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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.