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Finding the Fourth Proportional to 306,479.07, 459,718.59 and 84,863.07

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Solution

The fourth proportional to 306,479.07, 459,718.59 and 84,863.07 is: 127,294.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,479.07 : 459,718.59 = 84,863.07 : x
  2. Step 2: Convert to fraction form
    306,479.07/459,718.59 = 84,863.07/x
  3. Step 3: Cross multiply
    306,479.07x = 459,718.59 × 84,863.07
  4. Step 4: Simplify right side
    306,479.07x = 39,013,130,883.47
  5. Step 5: Solve for x
    x = 39,013,130,883.47/306,479.07
  6. Step 6: Final answer
    x = 127,294.60

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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.