Home / 761,242.23-1,050,548.45-421,688.61

Finding the Fourth Proportional to 761,242.23, 1,050,548.45 and 421,688.61

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Solution

The fourth proportional to 761,242.23, 1,050,548.45 and 421,688.61 is: 581,949.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,242.23 : 1,050,548.45 = 421,688.61 : x
  2. Step 2: Convert to fraction form
    761,242.23/1,050,548.45 = 421,688.61/x
  3. Step 3: Cross multiply
    761,242.23x = 1,050,548.45 × 421,688.61
  4. Step 4: Simplify right side
    761,242.23x = 443,004,313,509.71
  5. Step 5: Solve for x
    x = 443,004,313,509.71/761,242.23
  6. Step 6: Final answer
    x = 581,949.21

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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.