Home / 420,187.02-579,878.61-236,482.98

Finding the Fourth Proportional to 420,187.02, 579,878.61 and 236,482.98

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Solution

The fourth proportional to 420,187.02, 579,878.61 and 236,482.98 is: 326,358.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,187.02 : 579,878.61 = 236,482.98 : x
  2. Step 2: Convert to fraction form
    420,187.02/579,878.61 = 236,482.98/x
  3. Step 3: Cross multiply
    420,187.02x = 579,878.61 × 236,482.98
  4. Step 4: Simplify right side
    420,187.02x = 137,131,421,731.06
  5. Step 5: Solve for x
    x = 137,131,421,731.06/420,187.02
  6. Step 6: Final answer
    x = 326,358.06

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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.