Home / 738,411.16-1,019,008.31-398,879.41

Finding the Fourth Proportional to 738,411.16, 1,019,008.31 and 398,879.41

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Solution

The fourth proportional to 738,411.16, 1,019,008.31 and 398,879.41 is: 550,454.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,411.16 : 1,019,008.31 = 398,879.41 : x
  2. Step 2: Convert to fraction form
    738,411.16/1,019,008.31 = 398,879.41/x
  3. Step 3: Cross multiply
    738,411.16x = 1,019,008.31 × 398,879.41
  4. Step 4: Simplify right side
    738,411.16x = 406,461,433,477.90
  5. Step 5: Solve for x
    x = 406,461,433,477.90/738,411.16
  6. Step 6: Final answer
    x = 550,454.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.