Home / 738,333.32-1,018,899.95-398,801.57

Finding the Fourth Proportional to 738,333.32, 1,018,899.95 and 398,801.57

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Solution

The fourth proportional to 738,333.32, 1,018,899.95 and 398,801.57 is: 550,346.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,333.32 : 1,018,899.95 = 398,801.57 : x
  2. Step 2: Convert to fraction form
    738,333.32/1,018,899.95 = 398,801.57/x
  3. Step 3: Cross multiply
    738,333.32x = 1,018,899.95 × 398,801.57
  4. Step 4: Simplify right side
    738,333.32x = 406,338,892,644.41
  5. Step 5: Solve for x
    x = 406,338,892,644.41/738,333.32
  6. Step 6: Final answer
    x = 550,346.14

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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.