Home / 761,113.63-1,050,371.43-421,581.88

Finding the Fourth Proportional to 761,113.63, 1,050,371.43 and 421,581.88

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Solution

The fourth proportional to 761,113.63, 1,050,371.43 and 421,581.88 is: 581,802.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,113.63 : 1,050,371.43 = 421,581.88 : x
  2. Step 2: Convert to fraction form
    761,113.63/1,050,371.43 = 421,581.88/x
  3. Step 3: Cross multiply
    761,113.63x = 1,050,371.43 × 421,581.88
  4. Step 4: Simplify right side
    761,113.63x = 442,817,562,157.69
  5. Step 5: Solve for x
    x = 442,817,562,157.69/761,113.63
  6. Step 6: Final answer
    x = 581,802.17

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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.