Home / 1,398,152.52-2,097,222.27-438,678.36

Finding the Fourth Proportional to 1,398,152.52, 2,097,222.27 and 438,678.36

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Solution

The fourth proportional to 1,398,152.52, 2,097,222.27 and 438,678.36 is: 658,015.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,152.52 : 2,097,222.27 = 438,678.36 : x
  2. Step 2: Convert to fraction form
    1,398,152.52/2,097,222.27 = 438,678.36/x
  3. Step 3: Cross multiply
    1,398,152.52x = 2,097,222.27 × 438,678.36
  4. Step 4: Simplify right side
    1,398,152.52x = 920,006,025,959.08
  5. Step 5: Solve for x
    x = 920,006,025,959.08/1,398,152.52
  6. Step 6: Final answer
    x = 658,015.50

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Double scale
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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.