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Finding the Fourth Proportional to 630,582.57, 870,222.42 and 344,121.12

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Solution

The fourth proportional to 630,582.57, 870,222.42 and 344,121.12 is: 474,897.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,582.57 : 870,222.42 = 344,121.12 : x
  2. Step 2: Convert to fraction form
    630,582.57/870,222.42 = 344,121.12/x
  3. Step 3: Cross multiply
    630,582.57x = 870,222.42 × 344,121.12
  4. Step 4: Simplify right side
    630,582.57x = 299,461,913,819.51
  5. Step 5: Solve for x
    x = 299,461,913,819.51/630,582.57
  6. Step 6: Final answer
    x = 474,897.23

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1.5x scale

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.