Home / 858,455.04-1,288,946.52-480,117

Finding the Fourth Proportional to 858,455.04, 1,288,946.52 and 480,117

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Solution

The fourth proportional to 858,455.04, 1,288,946.52 and 480,117 is: 720,882.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,455.04 : 1,288,946.52 = 480,117 : x
  2. Step 2: Convert to fraction form
    858,455.04/1,288,946.52 = 480,117/x
  3. Step 3: Cross multiply
    858,455.04x = 1,288,946.52 × 480,117
  4. Step 4: Simplify right side
    858,455.04x = 618,845,136,342.84
  5. Step 5: Solve for x
    x = 618,845,136,342.84/858,455.04
  6. Step 6: Final answer
    x = 720,882.41

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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.