Home / 1,578,102.40-2,365,598.40-779,507.20

Finding the Fourth Proportional to 1,578,102.40, 2,365,598.40 and 779,507.20

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Solution

The fourth proportional to 1,578,102.40, 2,365,598.40 and 779,507.20 is: 1,168,492.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,102.40 : 2,365,598.40 = 779,507.20 : x
  2. Step 2: Convert to fraction form
    1,578,102.40/2,365,598.40 = 779,507.20/x
  3. Step 3: Cross multiply
    1,578,102.40x = 2,365,598.40 × 779,507.20
  4. Step 4: Simplify right side
    1,578,102.40x = 1,844,000,985,108.48
  5. Step 5: Solve for x
    x = 1,844,000,985,108.48/1,578,102.40
  6. Step 6: Final answer
    x = 1,168,492.61

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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.