Home / 912,574.60-1,368,405.04-281,406.40

Finding the Fourth Proportional to 912,574.60, 1,368,405.04 and 281,406.40

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Solution

The fourth proportional to 912,574.60, 1,368,405.04 and 281,406.40 is: 421,968.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,574.60 : 1,368,405.04 = 281,406.40 : x
  2. Step 2: Convert to fraction form
    912,574.60/1,368,405.04 = 281,406.40/x
  3. Step 3: Cross multiply
    912,574.60x = 1,368,405.04 × 281,406.40
  4. Step 4: Simplify right side
    912,574.60x = 385,077,936,048.26
  5. Step 5: Solve for x
    x = 385,077,936,048.26/912,574.60
  6. Step 6: Final answer
    x = 421,968.72

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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.