Home / 990,873.02-1,367,411.74-538,164.02

Finding the Fourth Proportional to 990,873.02, 1,367,411.74 and 538,164.02

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Solution

The fourth proportional to 990,873.02, 1,367,411.74 and 538,164.02 is: 742,670.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,873.02 : 1,367,411.74 = 538,164.02 : x
  2. Step 2: Convert to fraction form
    990,873.02/1,367,411.74 = 538,164.02/x
  3. Step 3: Cross multiply
    990,873.02x = 1,367,411.74 × 538,164.02
  4. Step 4: Simplify right side
    990,873.02x = 735,891,798,993.60
  5. Step 5: Solve for x
    x = 735,891,798,993.60/990,873.02
  6. Step 6: Final answer
    x = 742,670.13

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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.