Home / 779,020.74-1,075,227.75-456,834.60

Finding the Fourth Proportional to 779,020.74, 1,075,227.75 and 456,834.60

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Solution

The fourth proportional to 779,020.74, 1,075,227.75 and 456,834.60 is: 630,536.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,020.74 : 1,075,227.75 = 456,834.60 : x
  2. Step 2: Convert to fraction form
    779,020.74/1,075,227.75 = 456,834.60/x
  3. Step 3: Cross multiply
    779,020.74x = 1,075,227.75 × 456,834.60
  4. Step 4: Simplify right side
    779,020.74x = 491,201,239,080.15
  5. Step 5: Solve for x
    x = 491,201,239,080.15/779,020.74
  6. Step 6: Final answer
    x = 630,536.79

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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.