Home / 764,210.50-1,146,454.10-314,686.21

Finding the Fourth Proportional to 764,210.50, 1,146,454.10 and 314,686.21

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Solution

The fourth proportional to 764,210.50, 1,146,454.10 and 314,686.21 is: 472,086.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,210.50 : 1,146,454.10 = 314,686.21 : x
  2. Step 2: Convert to fraction form
    764,210.50/1,146,454.10 = 314,686.21/x
  3. Step 3: Cross multiply
    764,210.50x = 1,146,454.10 × 314,686.21
  4. Step 4: Simplify right side
    764,210.50x = 360,773,295,667.96
  5. Step 5: Solve for x
    x = 360,773,295,667.96/764,210.50
  6. Step 6: Final answer
    x = 472,086.28

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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.