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Finding the Fourth Proportional to 705,292.63, 973,968.12 and 491,018.62

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Solution

The fourth proportional to 705,292.63, 973,968.12 and 491,018.62 is: 678,068.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,292.63 : 973,968.12 = 491,018.62 : x
  2. Step 2: Convert to fraction form
    705,292.63/973,968.12 = 491,018.62/x
  3. Step 3: Cross multiply
    705,292.63x = 973,968.12 × 491,018.62
  4. Step 4: Simplify right side
    705,292.63x = 478,236,482,206.39
  5. Step 5: Solve for x
    x = 478,236,482,206.39/705,292.63
  6. Step 6: Final answer
    x = 678,068.17

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1.5x scale

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.