Home / 403,123.16-604,918.38-203,459.24

Finding the Fourth Proportional to 403,123.16, 604,918.38 and 203,459.24

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Solution

The fourth proportional to 403,123.16, 604,918.38 and 203,459.24 is: 305,306.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,123.16 : 604,918.38 = 203,459.24 : x
  2. Step 2: Convert to fraction form
    403,123.16/604,918.38 = 203,459.24/x
  3. Step 3: Cross multiply
    403,123.16x = 604,918.38 × 203,459.24
  4. Step 4: Simplify right side
    403,123.16x = 123,076,233,856.83
  5. Step 5: Solve for x
    x = 123,076,233,856.83/403,123.16
  6. Step 6: Final answer
    x = 305,306.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.