Home / 1,279,094.40-1,918,307.48-380,294.10

Finding the Fourth Proportional to 1,279,094.40, 1,918,307.48 and 380,294.10

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Solution

The fourth proportional to 1,279,094.40, 1,918,307.48 and 380,294.10 is: 570,341.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,094.40 : 1,918,307.48 = 380,294.10 : x
  2. Step 2: Convert to fraction form
    1,279,094.40/1,918,307.48 = 380,294.10/x
  3. Step 3: Cross multiply
    1,279,094.40x = 1,918,307.48 × 380,294.10
  4. Step 4: Simplify right side
    1,279,094.40x = 729,521,014,728.40
  5. Step 5: Solve for x
    x = 729,521,014,728.40/1,279,094.40
  6. Step 6: Final answer
    x = 570,341.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.