Home / 1,564,540.71-2,158,696.13-885,477.21

Finding the Fourth Proportional to 1,564,540.71, 2,158,696.13 and 885,477.21

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Solution

The fourth proportional to 1,564,540.71, 2,158,696.13 and 885,477.21 is: 1,221,749.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,564,540.71 : 2,158,696.13 = 885,477.21 : x
  2. Step 2: Convert to fraction form
    1,564,540.71/2,158,696.13 = 885,477.21/x
  3. Step 3: Cross multiply
    1,564,540.71x = 2,158,696.13 × 885,477.21
  4. Step 4: Simplify right side
    1,564,540.71x = 1,911,476,226,430.20
  5. Step 5: Solve for x
    x = 1,911,476,226,430.20/1,564,540.71
  6. Step 6: Final answer
    x = 1,221,749.11

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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.