Home / 1,278,374.24-1,918,294.02-520,075.74

Finding the Fourth Proportional to 1,278,374.24, 1,918,294.02 and 520,075.74

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Solution

The fourth proportional to 1,278,374.24, 1,918,294.02 and 520,075.74 is: 780,411.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,374.24 : 1,918,294.02 = 520,075.74 : x
  2. Step 2: Convert to fraction form
    1,278,374.24/1,918,294.02 = 520,075.74/x
  3. Step 3: Cross multiply
    1,278,374.24x = 1,918,294.02 × 520,075.74
  4. Step 4: Simplify right side
    1,278,374.24x = 997,658,181,989.08
  5. Step 5: Solve for x
    x = 997,658,181,989.08/1,278,374.24
  6. Step 6: Final answer
    x = 780,411.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.