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Finding the Fourth Proportional to 630,751.48, 870,436.76 and 344,271.54

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Solution

The fourth proportional to 630,751.48, 870,436.76 and 344,271.54 is: 475,094.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,751.48 : 870,436.76 = 344,271.54 : x
  2. Step 2: Convert to fraction form
    630,751.48/870,436.76 = 344,271.54/x
  3. Step 3: Cross multiply
    630,751.48x = 870,436.76 × 344,271.54
  4. Step 4: Simplify right side
    630,751.48x = 299,666,603,837.81
  5. Step 5: Solve for x
    x = 299,666,603,837.81/630,751.48
  6. Step 6: Final answer
    x = 475,094.57

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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.