Home / 738,225.26-1,018,750.64-398,693.51

Finding the Fourth Proportional to 738,225.26, 1,018,750.64 and 398,693.51

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Solution

The fourth proportional to 738,225.26, 1,018,750.64 and 398,693.51 is: 550,196.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,225.26 : 1,018,750.64 = 398,693.51 : x
  2. Step 2: Convert to fraction form
    738,225.26/1,018,750.64 = 398,693.51/x
  3. Step 3: Cross multiply
    738,225.26x = 1,018,750.64 × 398,693.51
  4. Step 4: Simplify right side
    738,225.26x = 406,169,264,379.33
  5. Step 5: Solve for x
    x = 406,169,264,379.33/738,225.26
  6. Step 6: Final answer
    x = 550,196.92

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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.