Home / 1,121,622.13-1,547,830.65-612,324.51

Finding the Fourth Proportional to 1,121,622.13, 1,547,830.65 and 612,324.51

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Solution

The fourth proportional to 1,121,622.13, 1,547,830.65 and 612,324.51 is: 845,003.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,622.13 : 1,547,830.65 = 612,324.51 : x
  2. Step 2: Convert to fraction form
    1,121,622.13/1,547,830.65 = 612,324.51/x
  3. Step 3: Cross multiply
    1,121,622.13x = 1,547,830.65 × 612,324.51
  4. Step 4: Simplify right side
    1,121,622.13x = 947,774,644,324.23
  5. Step 5: Solve for x
    x = 947,774,644,324.23/1,121,622.13
  6. Step 6: Final answer
    x = 845,003.52

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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.