Home / 738,307.14-1,018,864.54-398,775.39

Finding the Fourth Proportional to 738,307.14, 1,018,864.54 and 398,775.39

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Solution

The fourth proportional to 738,307.14, 1,018,864.54 and 398,775.39 is: 550,310.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,307.14 : 1,018,864.54 = 398,775.39 : x
  2. Step 2: Convert to fraction form
    738,307.14/1,018,864.54 = 398,775.39/x
  3. Step 3: Cross multiply
    738,307.14x = 1,018,864.54 × 398,775.39
  4. Step 4: Simplify right side
    738,307.14x = 406,298,104,295.67
  5. Step 5: Solve for x
    x = 406,298,104,295.67/738,307.14
  6. Step 6: Final answer
    x = 550,310.41

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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.