Home / 763,039.64-1,144,547.81-257,955.42

Finding the Fourth Proportional to 763,039.64, 1,144,547.81 and 257,955.42

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Solution

The fourth proportional to 763,039.64, 1,144,547.81 and 257,955.42 is: 386,929.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,039.64 : 1,144,547.81 = 257,955.42 : x
  2. Step 2: Convert to fraction form
    763,039.64/1,144,547.81 = 257,955.42/x
  3. Step 3: Cross multiply
    763,039.64x = 1,144,547.81 × 257,955.42
  4. Step 4: Simplify right side
    763,039.64x = 295,242,309,748.85
  5. Step 5: Solve for x
    x = 295,242,309,748.85/763,039.64
  6. Step 6: Final answer
    x = 386,929.19

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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.