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Finding the Fourth Proportional to 710,301.30, 980,237.34 and 388,032.16

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Solution

The fourth proportional to 710,301.30, 980,237.34 and 388,032.16 is: 535,496.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,301.30 : 980,237.34 = 388,032.16 : x
  2. Step 2: Convert to fraction form
    710,301.30/980,237.34 = 388,032.16/x
  3. Step 3: Cross multiply
    710,301.30x = 980,237.34 × 388,032.16
  4. Step 4: Simplify right side
    710,301.30x = 380,363,607,451.67
  5. Step 5: Solve for x
    x = 380,363,607,451.67/710,301.30
  6. Step 6: Final answer
    x = 535,496.14

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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.