Home / 1,121,621.13-1,547,829.27-612,323.51

Finding the Fourth Proportional to 1,121,621.13, 1,547,829.27 and 612,323.51

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Solution

The fourth proportional to 1,121,621.13, 1,547,829.27 and 612,323.51 is: 845,002.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,621.13 : 1,547,829.27 = 612,323.51 : x
  2. Step 2: Convert to fraction form
    1,121,621.13/1,547,829.27 = 612,323.51/x
  3. Step 3: Cross multiply
    1,121,621.13x = 1,547,829.27 × 612,323.51
  4. Step 4: Simplify right side
    1,121,621.13x = 947,772,243,747.99
  5. Step 5: Solve for x
    x = 947,772,243,747.99/1,121,621.13
  6. Step 6: Final answer
    x = 845,002.13

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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.