Home / 1,009,148.76-1,392,623.82-556,440.84

Finding the Fourth Proportional to 1,009,148.76, 1,392,623.82 and 556,440.84

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Solution

The fourth proportional to 1,009,148.76, 1,392,623.82 and 556,440.84 is: 767,887.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,148.76 : 1,392,623.82 = 556,440.84 : x
  2. Step 2: Convert to fraction form
    1,009,148.76/1,392,623.82 = 556,440.84/x
  3. Step 3: Cross multiply
    1,009,148.76x = 1,392,623.82 × 556,440.84
  4. Step 4: Simplify right side
    1,009,148.76x = 774,912,768,204.81
  5. Step 5: Solve for x
    x = 774,912,768,204.81/1,009,148.76
  6. Step 6: Final answer
    x = 767,887.55

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Double scale
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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.