Home / 763,127.30-1,144,852.86-289,802.18

Finding the Fourth Proportional to 763,127.30, 1,144,852.86 and 289,802.18

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Solution

The fourth proportional to 763,127.30, 1,144,852.86 and 289,802.18 is: 434,764.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,127.30 : 1,144,852.86 = 289,802.18 : x
  2. Step 2: Convert to fraction form
    763,127.30/1,144,852.86 = 289,802.18/x
  3. Step 3: Cross multiply
    763,127.30x = 1,144,852.86 × 289,802.18
  4. Step 4: Simplify right side
    763,127.30x = 331,780,854,607.24
  5. Step 5: Solve for x
    x = 331,780,854,607.24/763,127.30
  6. Step 6: Final answer
    x = 434,764.76

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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.