Home / 772,007.34-1,065,372.63-427,848.90

Finding the Fourth Proportional to 772,007.34, 1,065,372.63 and 427,848.90

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Solution

The fourth proportional to 772,007.34, 1,065,372.63 and 427,848.90 is: 590,432.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,007.34 : 1,065,372.63 = 427,848.90 : x
  2. Step 2: Convert to fraction form
    772,007.34/1,065,372.63 = 427,848.90/x
  3. Step 3: Cross multiply
    772,007.34x = 1,065,372.63 × 427,848.90
  4. Step 4: Simplify right side
    772,007.34x = 455,818,507,835.61
  5. Step 5: Solve for x
    x = 455,818,507,835.61/772,007.34
  6. Step 6: Final answer
    x = 590,432.87

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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.