Home / 778,075.56-1,073,774.28-438,536.52

Finding the Fourth Proportional to 778,075.56, 1,073,774.28 and 438,536.52

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Solution

The fourth proportional to 778,075.56, 1,073,774.28 and 438,536.52 is: 605,197.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,075.56 : 1,073,774.28 = 438,536.52 : x
  2. Step 2: Convert to fraction form
    778,075.56/1,073,774.28 = 438,536.52/x
  3. Step 3: Cross multiply
    778,075.56x = 1,073,774.28 × 438,536.52
  4. Step 4: Simplify right side
    778,075.56x = 470,889,236,016.71
  5. Step 5: Solve for x
    x = 470,889,236,016.71/778,075.56
  6. Step 6: Final answer
    x = 605,197.31

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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.