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Finding the Fourth Proportional to 644,904.72, 960,877.08 and 608,688

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Solution

The fourth proportional to 644,904.72, 960,877.08 and 608,688 is: 906,915.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,904.72 : 960,877.08 = 608,688 : x
  2. Step 2: Convert to fraction form
    644,904.72/960,877.08 = 608,688/x
  3. Step 3: Cross multiply
    644,904.72x = 960,877.08 × 608,688
  4. Step 4: Simplify right side
    644,904.72x = 584,874,348,071.04
  5. Step 5: Solve for x
    x = 584,874,348,071.04/644,904.72
  6. Step 6: Final answer
    x = 906,915.91

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.