Home / 459,121.80-688,682.70-456,497.40

Finding the Fourth Proportional to 459,121.80, 688,682.70 and 456,497.40

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Solution

The fourth proportional to 459,121.80, 688,682.70 and 456,497.40 is: 684,746.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,121.80 : 688,682.70 = 456,497.40 : x
  2. Step 2: Convert to fraction form
    459,121.80/688,682.70 = 456,497.40/x
  3. Step 3: Cross multiply
    459,121.80x = 688,682.70 × 456,497.40
  4. Step 4: Simplify right side
    459,121.80x = 314,381,861,974.98
  5. Step 5: Solve for x
    x = 314,381,861,974.98/459,121.80
  6. Step 6: Final answer
    x = 684,746.10

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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.