Home / 1,008,643.02-1,391,305.47-615,991.77

Finding the Fourth Proportional to 1,008,643.02, 1,391,305.47 and 615,991.77

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Solution

The fourth proportional to 1,008,643.02, 1,391,305.47 and 615,991.77 is: 849,688.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,643.02 : 1,391,305.47 = 615,991.77 : x
  2. Step 2: Convert to fraction form
    1,008,643.02/1,391,305.47 = 615,991.77/x
  3. Step 3: Cross multiply
    1,008,643.02x = 1,391,305.47 × 615,991.77
  4. Step 4: Simplify right side
    1,008,643.02x = 857,032,719,075.98
  5. Step 5: Solve for x
    x = 857,032,719,075.98/1,008,643.02
  6. Step 6: Final answer
    x = 849,688.84

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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.