Home / 1,319,298.94-1,820,636.05-715,686.94

Finding the Fourth Proportional to 1,319,298.94, 1,820,636.05 and 715,686.94

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Solution

The fourth proportional to 1,319,298.94, 1,820,636.05 and 715,686.94 is: 987,649.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,298.94 : 1,820,636.05 = 715,686.94 : x
  2. Step 2: Convert to fraction form
    1,319,298.94/1,820,636.05 = 715,686.94/x
  3. Step 3: Cross multiply
    1,319,298.94x = 1,820,636.05 × 715,686.94
  4. Step 4: Simplify right side
    1,319,298.94x = 1,303,005,439,899.75
  5. Step 5: Solve for x
    x = 1,303,005,439,899.75/1,319,298.94
  6. Step 6: Final answer
    x = 987,649.88

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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.