Home / 922,548.20-1,384,009.10-390,068.36

Finding the Fourth Proportional to 922,548.20, 1,384,009.10 and 390,068.36

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Solution

The fourth proportional to 922,548.20, 1,384,009.10 and 390,068.36 is: 585,181.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,548.20 : 1,384,009.10 = 390,068.36 : x
  2. Step 2: Convert to fraction form
    922,548.20/1,384,009.10 = 390,068.36/x
  3. Step 3: Cross multiply
    922,548.20x = 1,384,009.10 × 390,068.36
  4. Step 4: Simplify right side
    922,548.20x = 539,858,159,862.08
  5. Step 5: Solve for x
    x = 539,858,159,862.08/922,548.20
  6. Step 6: Final answer
    x = 585,181.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.