Home / 920,525.32-1,270,289.51-512,644.35

Finding the Fourth Proportional to 920,525.32, 1,270,289.51 and 512,644.35

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Solution

The fourth proportional to 920,525.32, 1,270,289.51 and 512,644.35 is: 707,429.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,525.32 : 1,270,289.51 = 512,644.35 : x
  2. Step 2: Convert to fraction form
    920,525.32/1,270,289.51 = 512,644.35/x
  3. Step 3: Cross multiply
    920,525.32x = 1,270,289.51 × 512,644.35
  4. Step 4: Simplify right side
    920,525.32x = 651,206,737,602.55
  5. Step 5: Solve for x
    x = 651,206,737,602.55/920,525.32
  6. Step 6: Final answer
    x = 707,429.47

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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.