Home / 1,007,830.35-1,390,316.00-644,963.31

Finding the Fourth Proportional to 1,007,830.35, 1,390,316.00 and 644,963.31

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Solution

The fourth proportional to 1,007,830.35, 1,390,316.00 and 644,963.31 is: 889,735.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,830.35 : 1,390,316.00 = 644,963.31 : x
  2. Step 2: Convert to fraction form
    1,007,830.35/1,390,316.00 = 644,963.31/x
  3. Step 3: Cross multiply
    1,007,830.35x = 1,390,316.00 × 644,963.31
  4. Step 4: Simplify right side
    1,007,830.35x = 896,702,806,081.14
  5. Step 5: Solve for x
    x = 896,702,806,081.14/1,007,830.35
  6. Step 6: Final answer
    x = 889,735.86

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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.