Home / 459,052.80-688,579.20-456,428.40

Finding the Fourth Proportional to 459,052.80, 688,579.20 and 456,428.40

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Solution

The fourth proportional to 459,052.80, 688,579.20 and 456,428.40 is: 684,642.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,052.80 : 688,579.20 = 456,428.40 : x
  2. Step 2: Convert to fraction form
    459,052.80/688,579.20 = 456,428.40/x
  3. Step 3: Cross multiply
    459,052.80x = 688,579.20 × 456,428.40
  4. Step 4: Simplify right side
    459,052.80x = 314,287,102,529.28
  5. Step 5: Solve for x
    x = 314,287,102,529.28/459,052.80
  6. Step 6: Final answer
    x = 684,642.60

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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.