Home / 920,900.02-1,270,881.23-513,001.37

Finding the Fourth Proportional to 920,900.02, 1,270,881.23 and 513,001.37

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Solution

The fourth proportional to 920,900.02, 1,270,881.23 and 513,001.37 is: 707,963.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,900.02 : 1,270,881.23 = 513,001.37 : x
  2. Step 2: Convert to fraction form
    920,900.02/1,270,881.23 = 513,001.37/x
  3. Step 3: Cross multiply
    920,900.02x = 1,270,881.23 × 513,001.37
  4. Step 4: Simplify right side
    920,900.02x = 651,963,812,097.29
  5. Step 5: Solve for x
    x = 651,963,812,097.29/920,900.02
  6. Step 6: Final answer
    x = 707,963.73

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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.