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Finding the Fourth Proportional to 706,999.04, 975,336.36 and 420,356.24

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Solution

The fourth proportional to 706,999.04, 975,336.36 and 420,356.24 is: 579,899.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,999.04 : 975,336.36 = 420,356.24 : x
  2. Step 2: Convert to fraction form
    706,999.04/975,336.36 = 420,356.24/x
  3. Step 3: Cross multiply
    706,999.04x = 975,336.36 × 420,356.24
  4. Step 4: Simplify right side
    706,999.04x = 409,988,725,024.89
  5. Step 5: Solve for x
    x = 409,988,725,024.89/706,999.04
  6. Step 6: Final answer
    x = 579,899.97

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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.