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Finding the Fourth Proportional to 691,252, 953,927.76 and 373,300

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Solution

The fourth proportional to 691,252, 953,927.76 and 373,300 is: 515,154

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,252 : 953,927.76 = 373,300 : x
  2. Step 2: Convert to fraction form
    691,252/953,927.76 = 373,300/x
  3. Step 3: Cross multiply
    691,252x = 953,927.76 × 373,300
  4. Step 4: Simplify right side
    691,252x = 356,101,232,808
  5. Step 5: Solve for x
    x = 356,101,232,808/691,252
  6. Step 6: Final answer
    x = 515,154

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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.