Home / 912,795.40-1,369,322.70-281,643.40

Finding the Fourth Proportional to 912,795.40, 1,369,322.70 and 281,643.40

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Solution

The fourth proportional to 912,795.40, 1,369,322.70 and 281,643.40 is: 422,505.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,795.40 : 1,369,322.70 = 281,643.40 : x
  2. Step 2: Convert to fraction form
    912,795.40/1,369,322.70 = 281,643.40/x
  3. Step 3: Cross multiply
    912,795.40x = 1,369,322.70 × 281,643.40
  4. Step 4: Simplify right side
    912,795.40x = 385,660,700,925.18
  5. Step 5: Solve for x
    x = 385,660,700,925.18/912,795.40
  6. Step 6: Final answer
    x = 422,505.09

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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.