Home / 642,017.20-964,062.60-484,423.60

Finding the Fourth Proportional to 642,017.20, 964,062.60 and 484,423.60

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Solution

The fourth proportional to 642,017.20, 964,062.60 and 484,423.60 is: 727,417.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,017.20 : 964,062.60 = 484,423.60 : x
  2. Step 2: Convert to fraction form
    642,017.20/964,062.60 = 484,423.60/x
  3. Step 3: Cross multiply
    642,017.20x = 964,062.60 × 484,423.60
  4. Step 4: Simplify right side
    642,017.20x = 467,014,675,317.36
  5. Step 5: Solve for x
    x = 467,014,675,317.36/642,017.20
  6. Step 6: Final answer
    x = 727,417.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.