Home / 900,617.95-1,242,848.28-492,712.39

Finding the Fourth Proportional to 900,617.95, 1,242,848.28 and 492,712.39

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Solution

The fourth proportional to 900,617.95, 1,242,848.28 and 492,712.39 is: 679,940.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,617.95 : 1,242,848.28 = 492,712.39 : x
  2. Step 2: Convert to fraction form
    900,617.95/1,242,848.28 = 492,712.39/x
  3. Step 3: Cross multiply
    900,617.95x = 1,242,848.28 × 492,712.39
  4. Step 4: Simplify right side
    900,617.95x = 612,366,746,446.19
  5. Step 5: Solve for x
    x = 612,366,746,446.19/900,617.95
  6. Step 6: Final answer
    x = 679,940.64

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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.