Home / 1,423,301.21-1,964,153.37-778,724

Finding the Fourth Proportional to 1,423,301.21, 1,964,153.37 and 778,724

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Solution

The fourth proportional to 1,423,301.21, 1,964,153.37 and 778,724 is: 1,074,637.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,301.21 : 1,964,153.37 = 778,724 : x
  2. Step 2: Convert to fraction form
    1,423,301.21/1,964,153.37 = 778,724/x
  3. Step 3: Cross multiply
    1,423,301.21x = 1,964,153.37 × 778,724
  4. Step 4: Simplify right side
    1,423,301.21x = 1,529,533,368,899.88
  5. Step 5: Solve for x
    x = 1,529,533,368,899.88/1,423,301.21
  6. Step 6: Final answer
    x = 1,074,637.86

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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.