Home / 920,525.02-1,270,320.50-512,631.70

Finding the Fourth Proportional to 920,525.02, 1,270,320.50 and 512,631.70

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Solution

The fourth proportional to 920,525.02, 1,270,320.50 and 512,631.70 is: 707,429.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,525.02 : 1,270,320.50 = 512,631.70 : x
  2. Step 2: Convert to fraction form
    920,525.02/1,270,320.50 = 512,631.70/x
  3. Step 3: Cross multiply
    920,525.02x = 1,270,320.50 × 512,631.70
  4. Step 4: Simplify right side
    920,525.02x = 651,206,557,459.85
  5. Step 5: Solve for x
    x = 651,206,557,459.85/920,525.02
  6. Step 6: Final answer
    x = 707,429.50

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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.