Home / 1,421,184.90-1,961,151.57-776,476.74

Finding the Fourth Proportional to 1,421,184.90, 1,961,151.57 and 776,476.74

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Solution

The fourth proportional to 1,421,184.90, 1,961,151.57 and 776,476.74 is: 1,071,492.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,184.90 : 1,961,151.57 = 776,476.74 : x
  2. Step 2: Convert to fraction form
    1,421,184.90/1,961,151.57 = 776,476.74/x
  3. Step 3: Cross multiply
    1,421,184.90x = 1,961,151.57 × 776,476.74
  4. Step 4: Simplify right side
    1,421,184.90x = 1,522,788,577,719.48
  5. Step 5: Solve for x
    x = 1,522,788,577,719.48/1,421,184.90
  6. Step 6: Final answer
    x = 1,071,492.23

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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.