Home / 829,599.80-1,245,711.90-630,145.40

Finding the Fourth Proportional to 829,599.80, 1,245,711.90 and 630,145.40

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Solution

The fourth proportional to 829,599.80, 1,245,711.90 and 630,145.40 is: 946,214.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,599.80 : 1,245,711.90 = 630,145.40 : x
  2. Step 2: Convert to fraction form
    829,599.80/1,245,711.90 = 630,145.40/x
  3. Step 3: Cross multiply
    829,599.80x = 1,245,711.90 × 630,145.40
  4. Step 4: Simplify right side
    829,599.80x = 784,979,623,510.26
  5. Step 5: Solve for x
    x = 784,979,623,510.26/829,599.80
  6. Step 6: Final answer
    x = 946,214.82

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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.