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Finding the Fourth Proportional to 706,248.88, 974,642.68 and 383,980.64

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Solution

The fourth proportional to 706,248.88, 974,642.68 and 383,980.64 is: 529,903.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,248.88 : 974,642.68 = 383,980.64 : x
  2. Step 2: Convert to fraction form
    706,248.88/974,642.68 = 383,980.64/x
  3. Step 3: Cross multiply
    706,248.88x = 974,642.68 × 383,980.64
  4. Step 4: Simplify right side
    706,248.88x = 374,243,920,037.72
  5. Step 5: Solve for x
    x = 374,243,920,037.72/706,248.88
  6. Step 6: Final answer
    x = 529,903.74

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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.