Home / 749,840.80-1,036,770.96-655,362.40

Finding the Fourth Proportional to 749,840.80, 1,036,770.96 and 655,362.40

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Solution

The fourth proportional to 749,840.80, 1,036,770.96 and 655,362.40 is: 906,139.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,840.80 : 1,036,770.96 = 655,362.40 : x
  2. Step 2: Convert to fraction form
    749,840.80/1,036,770.96 = 655,362.40/x
  3. Step 3: Cross multiply
    749,840.80x = 1,036,770.96 × 655,362.40
  4. Step 4: Simplify right side
    749,840.80x = 679,460,704,595.90
  5. Step 5: Solve for x
    x = 679,460,704,595.90/749,840.80
  6. Step 6: Final answer
    x = 906,139.95

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1.5x scale

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.