Home / 403,225.10-604,837.66-278,809.10

Finding the Fourth Proportional to 403,225.10, 604,837.66 and 278,809.10

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Solution

The fourth proportional to 403,225.10, 604,837.66 and 278,809.10 is: 418,213.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,225.10 : 604,837.66 = 278,809.10 : x
  2. Step 2: Convert to fraction form
    403,225.10/604,837.66 = 278,809.10/x
  3. Step 3: Cross multiply
    403,225.10x = 604,837.66 × 278,809.10
  4. Step 4: Simplify right side
    403,225.10x = 168,634,243,630.71
  5. Step 5: Solve for x
    x = 168,634,243,630.71/403,225.10
  6. Step 6: Final answer
    x = 418,213.66

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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.