Home / 920,295-1,270,007.10-517,895.64

Finding the Fourth Proportional to 920,295, 1,270,007.10 and 517,895.64

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Solution

The fourth proportional to 920,295, 1,270,007.10 and 517,895.64 is: 714,695.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,295 : 1,270,007.10 = 517,895.64 : x
  2. Step 2: Convert to fraction form
    920,295/1,270,007.10 = 517,895.64/x
  3. Step 3: Cross multiply
    920,295x = 1,270,007.10 × 517,895.64
  4. Step 4: Simplify right side
    920,295x = 657,731,139,859.04
  5. Step 5: Solve for x
    x = 657,731,139,859.04/920,295
  6. Step 6: Final answer
    x = 714,695.98

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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.