Home / 1,007,547.80-1,388,947.14-765,410.00

Finding the Fourth Proportional to 1,007,547.80, 1,388,947.14 and 765,410.00

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Solution

The fourth proportional to 1,007,547.80, 1,388,947.14 and 765,410.00 is: 1,055,149.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,547.80 : 1,388,947.14 = 765,410.00 : x
  2. Step 2: Convert to fraction form
    1,007,547.80/1,388,947.14 = 765,410.00/x
  3. Step 3: Cross multiply
    1,007,547.80x = 1,388,947.14 × 765,410.00
  4. Step 4: Simplify right side
    1,007,547.80x = 1,063,114,023,482.66
  5. Step 5: Solve for x
    x = 1,063,114,023,482.66/1,007,547.80
  6. Step 6: Final answer
    x = 1,055,149.97

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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.