Home / 779,544.32-1,075,770.56-421,848.32

Finding the Fourth Proportional to 779,544.32, 1,075,770.56 and 421,848.32

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Solution

The fourth proportional to 779,544.32, 1,075,770.56 and 421,848.32 is: 582,150.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,544.32 : 1,075,770.56 = 421,848.32 : x
  2. Step 2: Convert to fraction form
    779,544.32/1,075,770.56 = 421,848.32/x
  3. Step 3: Cross multiply
    779,544.32x = 1,075,770.56 × 421,848.32
  4. Step 4: Simplify right side
    779,544.32x = 453,812,003,441.46
  5. Step 5: Solve for x
    x = 453,812,003,441.46/779,544.32
  6. Step 6: Final answer
    x = 582,150.36

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Double scale
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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.