Home / 990,862.32-1,367,388.80-538,150.08

Finding the Fourth Proportional to 990,862.32, 1,367,388.80 and 538,150.08

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Solution

The fourth proportional to 990,862.32, 1,367,388.80 and 538,150.08 is: 742,646.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,862.32 : 1,367,388.80 = 538,150.08 : x
  2. Step 2: Convert to fraction form
    990,862.32/1,367,388.80 = 538,150.08/x
  3. Step 3: Cross multiply
    990,862.32x = 1,367,388.80 × 538,150.08
  4. Step 4: Simplify right side
    990,862.32x = 735,860,392,111.10
  5. Step 5: Solve for x
    x = 735,860,392,111.10/990,862.32
  6. Step 6: Final answer
    x = 742,646.46

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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.