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Finding the Fourth Proportional to 630,750.48, 870,435.38 and 344,270.54

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Solution

The fourth proportional to 630,750.48, 870,435.38 and 344,270.54 is: 475,093.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,750.48 : 870,435.38 = 344,270.54 : x
  2. Step 2: Convert to fraction form
    630,750.48/870,435.38 = 344,270.54/x
  3. Step 3: Cross multiply
    630,750.48x = 870,435.38 × 344,270.54
  4. Step 4: Simplify right side
    630,750.48x = 299,665,258,307.71
  5. Step 5: Solve for x
    x = 299,665,258,307.71/630,750.48
  6. Step 6: Final answer
    x = 475,093.19

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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.