Home / 761,443.44-1,050,776.28-421,908.72

Finding the Fourth Proportional to 761,443.44, 1,050,776.28 and 421,908.72

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Solution

The fourth proportional to 761,443.44, 1,050,776.28 and 421,908.72 is: 582,225.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,443.44 : 1,050,776.28 = 421,908.72 : x
  2. Step 2: Convert to fraction form
    761,443.44/1,050,776.28 = 421,908.72/x
  3. Step 3: Cross multiply
    761,443.44x = 1,050,776.28 × 421,908.72
  4. Step 4: Simplify right side
    761,443.44x = 443,331,675,301.16
  5. Step 5: Solve for x
    x = 443,331,675,301.16/761,443.44
  6. Step 6: Final answer
    x = 582,225.35

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1.5x scale

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.