Home / 1,398,005.33-2,097,013.47-425,379.34

Finding the Fourth Proportional to 1,398,005.33, 2,097,013.47 and 425,379.34

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Solution

The fourth proportional to 1,398,005.33, 2,097,013.47 and 425,379.34 is: 638,070.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,005.33 : 2,097,013.47 = 425,379.34 : x
  2. Step 2: Convert to fraction form
    1,398,005.33/2,097,013.47 = 425,379.34/x
  3. Step 3: Cross multiply
    1,398,005.33x = 2,097,013.47 × 425,379.34
  4. Step 4: Simplify right side
    1,398,005.33x = 892,026,205,839.71
  5. Step 5: Solve for x
    x = 892,026,205,839.71/1,398,005.33
  6. Step 6: Final answer
    x = 638,070.68

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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.