Home / 693,376.55-956,841.26-387,455.46

Finding the Fourth Proportional to 693,376.55, 956,841.26 and 387,455.46

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Solution

The fourth proportional to 693,376.55, 956,841.26 and 387,455.46 is: 534,678.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,376.55 : 956,841.26 = 387,455.46 : x
  2. Step 2: Convert to fraction form
    693,376.55/956,841.26 = 387,455.46/x
  3. Step 3: Cross multiply
    693,376.55x = 956,841.26 × 387,455.46
  4. Step 4: Simplify right side
    693,376.55x = 370,733,368,603.00
  5. Step 5: Solve for x
    x = 370,733,368,603.00/693,376.55
  6. Step 6: Final answer
    x = 534,678.26

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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.