Home / 1,051,909.70-1,578,901.35-520,031.30

Finding the Fourth Proportional to 1,051,909.70, 1,578,901.35 and 520,031.30

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Solution

The fourth proportional to 1,051,909.70, 1,578,901.35 and 520,031.30 is: 780,559.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051,909.70 : 1,578,901.35 = 520,031.30 : x
  2. Step 2: Convert to fraction form
    1,051,909.70/1,578,901.35 = 520,031.30/x
  3. Step 3: Cross multiply
    1,051,909.70x = 1,578,901.35 × 520,031.30
  4. Step 4: Simplify right side
    1,051,909.70x = 821,078,121,612.26
  5. Step 5: Solve for x
    x = 821,078,121,612.26/1,051,909.70
  6. Step 6: Final answer
    x = 780,559.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.