Home / 684,555.80-1,024,865.40-418,835.30

Finding the Fourth Proportional to 684,555.80, 1,024,865.40 and 418,835.30

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Solution

The fourth proportional to 684,555.80, 1,024,865.40 and 418,835.30 is: 627,048.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,555.80 : 1,024,865.40 = 418,835.30 : x
  2. Step 2: Convert to fraction form
    684,555.80/1,024,865.40 = 418,835.30/x
  3. Step 3: Cross multiply
    684,555.80x = 1,024,865.40 × 418,835.30
  4. Step 4: Simplify right side
    684,555.80x = 429,249,807,268.62
  5. Step 5: Solve for x
    x = 429,249,807,268.62/684,555.80
  6. Step 6: Final answer
    x = 627,048.67

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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.