Home / 439,865.01-657,068.36-318,962.21

Finding the Fourth Proportional to 439,865.01, 657,068.36 and 318,962.21

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Solution

The fourth proportional to 439,865.01, 657,068.36 and 318,962.21 is: 476,464.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,865.01 : 657,068.36 = 318,962.21 : x
  2. Step 2: Convert to fraction form
    439,865.01/657,068.36 = 318,962.21/x
  3. Step 3: Cross multiply
    439,865.01x = 657,068.36 × 318,962.21
  4. Step 4: Simplify right side
    439,865.01x = 209,579,971,346.52
  5. Step 5: Solve for x
    x = 209,579,971,346.52/439,865.01
  6. Step 6: Final answer
    x = 476,464.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.