Home / 779,600.69-1,075,848.95-421,904.69

Finding the Fourth Proportional to 779,600.69, 1,075,848.95 and 421,904.69

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Solution

The fourth proportional to 779,600.69, 1,075,848.95 and 421,904.69 is: 582,228.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,600.69 : 1,075,848.95 = 421,904.69 : x
  2. Step 2: Convert to fraction form
    779,600.69/1,075,848.95 = 421,904.69/x
  3. Step 3: Cross multiply
    779,600.69x = 1,075,848.95 × 421,904.69
  4. Step 4: Simplify right side
    779,600.69x = 453,905,717,736.58
  5. Step 5: Solve for x
    x = 453,905,717,736.58/779,600.69
  6. Step 6: Final answer
    x = 582,228.47

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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.