Home / 935,530.86-1,291,031.49-505,809.96

Finding the Fourth Proportional to 935,530.86, 1,291,031.49 and 505,809.96

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Solution

The fourth proportional to 935,530.86, 1,291,031.49 and 505,809.96 is: 698,017.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,530.86 : 1,291,031.49 = 505,809.96 : x
  2. Step 2: Convert to fraction form
    935,530.86/1,291,031.49 = 505,809.96/x
  3. Step 3: Cross multiply
    935,530.86x = 1,291,031.49 × 505,809.96
  4. Step 4: Simplify right side
    935,530.86x = 653,016,586,315.64
  5. Step 5: Solve for x
    x = 653,016,586,315.64/935,530.86
  6. Step 6: Final answer
    x = 698,017.15

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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.