Home / 917,728.96-1,376,620.59-438,007.31

Finding the Fourth Proportional to 917,728.96, 1,376,620.59 and 438,007.31

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Solution

The fourth proportional to 917,728.96, 1,376,620.59 and 438,007.31 is: 657,023.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,728.96 : 1,376,620.59 = 438,007.31 : x
  2. Step 2: Convert to fraction form
    917,728.96/1,376,620.59 = 438,007.31/x
  3. Step 3: Cross multiply
    917,728.96x = 1,376,620.59 × 438,007.31
  4. Step 4: Simplify right side
    917,728.96x = 602,969,886,600.59
  5. Step 5: Solve for x
    x = 602,969,886,600.59/917,728.96
  6. Step 6: Final answer
    x = 657,023.93

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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.