Home / 816,919.08-1,225,384.71-284,439.30

Finding the Fourth Proportional to 816,919.08, 1,225,384.71 and 284,439.30

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Solution

The fourth proportional to 816,919.08, 1,225,384.71 and 284,439.30 is: 426,661.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,919.08 : 1,225,384.71 = 284,439.30 : x
  2. Step 2: Convert to fraction form
    816,919.08/1,225,384.71 = 284,439.30/x
  3. Step 3: Cross multiply
    816,919.08x = 1,225,384.71 × 284,439.30
  4. Step 4: Simplify right side
    816,919.08x = 348,547,569,143.10
  5. Step 5: Solve for x
    x = 348,547,569,143.10/816,919.08
  6. Step 6: Final answer
    x = 426,661.07

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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.