Home / 771,889.20-1,065,207.06-470,083.20

Finding the Fourth Proportional to 771,889.20, 1,065,207.06 and 470,083.20

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Solution

The fourth proportional to 771,889.20, 1,065,207.06 and 470,083.20 is: 648,714.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,889.20 : 1,065,207.06 = 470,083.20 : x
  2. Step 2: Convert to fraction form
    771,889.20/1,065,207.06 = 470,083.20/x
  3. Step 3: Cross multiply
    771,889.20x = 1,065,207.06 × 470,083.20
  4. Step 4: Simplify right side
    771,889.20x = 500,735,943,427.39
  5. Step 5: Solve for x
    x = 500,735,943,427.39/771,889.20
  6. Step 6: Final answer
    x = 648,714.79

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1.5x scale

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.