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Finding the Fourth Proportional to 679,146.95, 937,228.35 and 424,645.67

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Solution

The fourth proportional to 679,146.95, 937,228.35 and 424,645.67 is: 586,014.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,146.95 : 937,228.35 = 424,645.67 : x
  2. Step 2: Convert to fraction form
    679,146.95/937,228.35 = 424,645.67/x
  3. Step 3: Cross multiply
    679,146.95x = 937,228.35 × 424,645.67
  4. Step 4: Simplify right side
    679,146.95x = 397,989,955,942.60
  5. Step 5: Solve for x
    x = 397,989,955,942.60/679,146.95
  6. Step 6: Final answer
    x = 586,014.50

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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.