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Finding the Fourth Proportional to 630,539.26, 870,136.93 and 344,064.13

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Solution

The fourth proportional to 630,539.26, 870,136.93 and 344,064.13 is: 474,804.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,539.26 : 870,136.93 = 344,064.13 : x
  2. Step 2: Convert to fraction form
    630,539.26/870,136.93 = 344,064.13/x
  3. Step 3: Cross multiply
    630,539.26x = 870,136.93 × 344,064.13
  4. Step 4: Simplify right side
    630,539.26x = 299,382,905,801.32
  5. Step 5: Solve for x
    x = 299,382,905,801.32/630,539.26
  6. Step 6: Final answer
    x = 474,804.54

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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.