Home / 851,031.80-1,276,547.70-768,087.80

Finding the Fourth Proportional to 851,031.80, 1,276,547.70 and 768,087.80

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Solution

The fourth proportional to 851,031.80, 1,276,547.70 and 768,087.80 is: 1,152,131.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,031.80 : 1,276,547.70 = 768,087.80 : x
  2. Step 2: Convert to fraction form
    851,031.80/1,276,547.70 = 768,087.80/x
  3. Step 3: Cross multiply
    851,031.80x = 1,276,547.70 × 768,087.80
  4. Step 4: Simplify right side
    851,031.80x = 980,500,714,488.06
  5. Step 5: Solve for x
    x = 980,500,714,488.06/851,031.80
  6. Step 6: Final answer
    x = 1,152,131.70

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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.