Home / 920,467.50-1,270,243.80-512,605.05

Finding the Fourth Proportional to 920,467.50, 1,270,243.80 and 512,605.05

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Solution

The fourth proportional to 920,467.50, 1,270,243.80 and 512,605.05 is: 707,394.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,467.50 : 1,270,243.80 = 512,605.05 : x
  2. Step 2: Convert to fraction form
    920,467.50/1,270,243.80 = 512,605.05/x
  3. Step 3: Cross multiply
    920,467.50x = 1,270,243.80 × 512,605.05
  4. Step 4: Simplify right side
    920,467.50x = 651,133,386,611.19
  5. Step 5: Solve for x
    x = 651,133,386,611.19/920,467.50
  6. Step 6: Final answer
    x = 707,394.22

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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.