Home / 742,339.80-1,113,509.70-476,619.30

Finding the Fourth Proportional to 742,339.80, 1,113,509.70 and 476,619.30

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Solution

The fourth proportional to 742,339.80, 1,113,509.70 and 476,619.30 is: 714,928.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,339.80 : 1,113,509.70 = 476,619.30 : x
  2. Step 2: Convert to fraction form
    742,339.80/1,113,509.70 = 476,619.30/x
  3. Step 3: Cross multiply
    742,339.80x = 1,113,509.70 × 476,619.30
  4. Step 4: Simplify right side
    742,339.80x = 530,720,213,757.21
  5. Step 5: Solve for x
    x = 530,720,213,757.21/742,339.80
  6. Step 6: Final answer
    x = 714,928.95

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1.5x scale

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.