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Finding the Fourth Proportional to 693,590.40, 972,892.80 and 693,590.40

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Solution

The fourth proportional to 693,590.40, 972,892.80 and 693,590.40 is: 972,892.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,590.40 : 972,892.80 = 693,590.40 : x
  2. Step 2: Convert to fraction form
    693,590.40/972,892.80 = 693,590.40/x
  3. Step 3: Cross multiply
    693,590.40x = 972,892.80 × 693,590.40
  4. Step 4: Simplify right side
    693,590.40x = 674,789,106,309.12
  5. Step 5: Solve for x
    x = 674,789,106,309.12/693,590.40
  6. Step 6: Final answer
    x = 972,892.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.