Home / 1,051,570.20-1,577,009.70-386,635.80

Finding the Fourth Proportional to 1,051,570.20, 1,577,009.70 and 386,635.80

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Solution

The fourth proportional to 1,051,570.20, 1,577,009.70 and 386,635.80 is: 579,826.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051,570.20 : 1,577,009.70 = 386,635.80 : x
  2. Step 2: Convert to fraction form
    1,051,570.20/1,577,009.70 = 386,635.80/x
  3. Step 3: Cross multiply
    1,051,570.20x = 1,577,009.70 × 386,635.80
  4. Step 4: Simplify right side
    1,051,570.20x = 609,728,406,967.26
  5. Step 5: Solve for x
    x = 609,728,406,967.26/1,051,570.20
  6. Step 6: Final answer
    x = 579,826.63

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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.