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Finding the Fourth Proportional to 459,301.99, 688,860.45 and 288,447.40

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Solution

The fourth proportional to 459,301.99, 688,860.45 and 288,447.40 is: 432,612.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,301.99 : 688,860.45 = 288,447.40 : x
  2. Step 2: Convert to fraction form
    459,301.99/688,860.45 = 288,447.40/x
  3. Step 3: Cross multiply
    459,301.99x = 688,860.45 × 288,447.40
  4. Step 4: Simplify right side
    459,301.99x = 198,700,002,751.57
  5. Step 5: Solve for x
    x = 198,700,002,751.57/459,301.99
  6. Step 6: Final answer
    x = 432,612.98

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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.