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Finding the Fourth Proportional to 630,559.70, 870,155.97 and 344,083.22

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Solution

The fourth proportional to 630,559.70, 870,155.97 and 344,083.22 is: 474,825.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,559.70 : 870,155.97 = 344,083.22 : x
  2. Step 2: Convert to fraction form
    630,559.70/870,155.97 = 344,083.22/x
  3. Step 3: Cross multiply
    630,559.70x = 870,155.97 × 344,083.22
  4. Step 4: Simplify right side
    630,559.70x = 299,406,068,059.82
  5. Step 5: Solve for x
    x = 299,406,068,059.82/630,559.70
  6. Step 6: Final answer
    x = 474,825.89

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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.