Home / 1,386,540.47-1,913,412.69-774,798.60

Finding the Fourth Proportional to 1,386,540.47, 1,913,412.69 and 774,798.60

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Solution

The fourth proportional to 1,386,540.47, 1,913,412.69 and 774,798.60 is: 1,069,214.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,540.47 : 1,913,412.69 = 774,798.60 : x
  2. Step 2: Convert to fraction form
    1,386,540.47/1,913,412.69 = 774,798.60/x
  3. Step 3: Cross multiply
    1,386,540.47x = 1,913,412.69 × 774,798.60
  4. Step 4: Simplify right side
    1,386,540.47x = 1,482,509,473,434.23
  5. Step 5: Solve for x
    x = 1,482,509,473,434.23/1,386,540.47
  6. Step 6: Final answer
    x = 1,069,214.71

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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.