Home / 1,500,521.63-2,070,719.79-821,458.13

Finding the Fourth Proportional to 1,500,521.63, 2,070,719.79 and 821,458.13

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Solution

The fourth proportional to 1,500,521.63, 2,070,719.79 and 821,458.13 is: 1,133,612.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,521.63 : 2,070,719.79 = 821,458.13 : x
  2. Step 2: Convert to fraction form
    1,500,521.63/2,070,719.79 = 821,458.13/x
  3. Step 3: Cross multiply
    1,500,521.63x = 2,070,719.79 × 821,458.13
  4. Step 4: Simplify right side
    1,500,521.63x = 1,701,009,606,447.39
  5. Step 5: Solve for x
    x = 1,701,009,606,447.39/1,500,521.63
  6. Step 6: Final answer
    x = 1,133,612.19

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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.