Home / 920,729.53-1,270,670.64-558,168.67

Finding the Fourth Proportional to 920,729.53, 1,270,670.64 and 558,168.67

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Solution

The fourth proportional to 920,729.53, 1,270,670.64 and 558,168.67 is: 770,311.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,729.53 : 1,270,670.64 = 558,168.67 : x
  2. Step 2: Convert to fraction form
    920,729.53/1,270,670.64 = 558,168.67/x
  3. Step 3: Cross multiply
    920,729.53x = 1,270,670.64 × 558,168.67
  4. Step 4: Simplify right side
    920,729.53x = 709,248,537,960.17
  5. Step 5: Solve for x
    x = 709,248,537,960.17/920,729.53
  6. Step 6: Final answer
    x = 770,311.49

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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.