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Finding the Fourth Proportional to 649,287.81, 896,015.30 and 362,808.18

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Solution

The fourth proportional to 649,287.81, 896,015.30 and 362,808.18 is: 500,674.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,287.81 : 896,015.30 = 362,808.18 : x
  2. Step 2: Convert to fraction form
    649,287.81/896,015.30 = 362,808.18/x
  3. Step 3: Cross multiply
    649,287.81x = 896,015.30 × 362,808.18
  4. Step 4: Simplify right side
    649,287.81x = 325,081,678,431.11
  5. Step 5: Solve for x
    x = 325,081,678,431.11/649,287.81
  6. Step 6: Final answer
    x = 500,674.24

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1.5x scale

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.