Home / 972,006.40-1,458,009.60-340,838.20

Finding the Fourth Proportional to 972,006.40, 1,458,009.60 and 340,838.20

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Solution

The fourth proportional to 972,006.40, 1,458,009.60 and 340,838.20 is: 511,257.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,006.40 : 1,458,009.60 = 340,838.20 : x
  2. Step 2: Convert to fraction form
    972,006.40/1,458,009.60 = 340,838.20/x
  3. Step 3: Cross multiply
    972,006.40x = 1,458,009.60 × 340,838.20
  4. Step 4: Simplify right side
    972,006.40x = 496,945,367,646.72
  5. Step 5: Solve for x
    x = 496,945,367,646.72/972,006.40
  6. Step 6: Final answer
    x = 511,257.30

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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.