Home / 693,530.40-1,039,129.20-456,751.20

Finding the Fourth Proportional to 693,530.40, 1,039,129.20 and 456,751.20

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Solution

The fourth proportional to 693,530.40, 1,039,129.20 and 456,751.20 is: 684,358.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,530.40 : 1,039,129.20 = 456,751.20 : x
  2. Step 2: Convert to fraction form
    693,530.40/1,039,129.20 = 456,751.20/x
  3. Step 3: Cross multiply
    693,530.40x = 1,039,129.20 × 456,751.20
  4. Step 4: Simplify right side
    693,530.40x = 474,623,509,055.04
  5. Step 5: Solve for x
    x = 474,623,509,055.04/693,530.40
  6. Step 6: Final answer
    x = 684,358.62

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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.