Home / 420,442.18-630,860.10-183,754.10

Finding the Fourth Proportional to 420,442.18, 630,860.10 and 183,754.10

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Solution

The fourth proportional to 420,442.18, 630,860.10 and 183,754.10 is: 275,717.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,442.18 : 630,860.10 = 183,754.10 : x
  2. Step 2: Convert to fraction form
    420,442.18/630,860.10 = 183,754.10/x
  3. Step 3: Cross multiply
    420,442.18x = 630,860.10 × 183,754.10
  4. Step 4: Simplify right side
    420,442.18x = 115,923,129,901.41
  5. Step 5: Solve for x
    x = 115,923,129,901.41/420,442.18
  6. Step 6: Final answer
    x = 275,717.17

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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.