Home / 761,407.23-1,050,742-421,875.48

Finding the Fourth Proportional to 761,407.23, 1,050,742 and 421,875.48

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Solution

The fourth proportional to 761,407.23, 1,050,742 and 421,875.48 is: 582,188.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,407.23 : 1,050,742 = 421,875.48 : x
  2. Step 2: Convert to fraction form
    761,407.23/1,050,742 = 421,875.48/x
  3. Step 3: Cross multiply
    761,407.23x = 1,050,742 × 421,875.48
  4. Step 4: Simplify right side
    761,407.23x = 443,282,285,606.16
  5. Step 5: Solve for x
    x = 443,282,285,606.16/761,407.23
  6. Step 6: Final answer
    x = 582,188.17

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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.