Home / 912,705.60-1,369,058.40-281,618.40

Finding the Fourth Proportional to 912,705.60, 1,369,058.40 and 281,618.40

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Solution

The fourth proportional to 912,705.60, 1,369,058.40 and 281,618.40 is: 422,427.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,705.60 : 1,369,058.40 = 281,618.40 : x
  2. Step 2: Convert to fraction form
    912,705.60/1,369,058.40 = 281,618.40/x
  3. Step 3: Cross multiply
    912,705.60x = 1,369,058.40 × 281,618.40
  4. Step 4: Simplify right side
    912,705.60x = 385,552,036,114.56
  5. Step 5: Solve for x
    x = 385,552,036,114.56/912,705.60
  6. Step 6: Final answer
    x = 422,427.60

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1.5x scale

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.