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Finding the Fourth Proportional to 706,386.42, 975,173.85 and 478,149.89

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Solution

The fourth proportional to 706,386.42, 975,173.85 and 478,149.89 is: 660,090.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,386.42 : 975,173.85 = 478,149.89 : x
  2. Step 2: Convert to fraction form
    706,386.42/975,173.85 = 478,149.89/x
  3. Step 3: Cross multiply
    706,386.42x = 975,173.85 × 478,149.89
  4. Step 4: Simplify right side
    706,386.42x = 466,279,264,232.51
  5. Step 5: Solve for x
    x = 466,279,264,232.51/706,386.42
  6. Step 6: Final answer
    x = 660,090.92

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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.