Home / 630,564.52-870,179.04-404,210.02

Finding the Fourth Proportional to 630,564.52, 870,179.04 and 404,210.02

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Solution

The fourth proportional to 630,564.52, 870,179.04 and 404,210.02 is: 557,809.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,564.52 : 870,179.04 = 404,210.02 : x
  2. Step 2: Convert to fraction form
    630,564.52/870,179.04 = 404,210.02/x
  3. Step 3: Cross multiply
    630,564.52x = 870,179.04 × 404,210.02
  4. Step 4: Simplify right side
    630,564.52x = 351,735,087,161.98
  5. Step 5: Solve for x
    x = 351,735,087,161.98/630,564.52
  6. Step 6: Final answer
    x = 557,809.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.