Home / 859,726.40-1,289,128.80-360,526.40

Finding the Fourth Proportional to 859,726.40, 1,289,128.80 and 360,526.40

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Solution

The fourth proportional to 859,726.40, 1,289,128.80 and 360,526.40 is: 540,596.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,726.40 : 1,289,128.80 = 360,526.40 : x
  2. Step 2: Convert to fraction form
    859,726.40/1,289,128.80 = 360,526.40/x
  3. Step 3: Cross multiply
    859,726.40x = 1,289,128.80 × 360,526.40
  4. Step 4: Simplify right side
    859,726.40x = 464,764,965,400.32
  5. Step 5: Solve for x
    x = 464,764,965,400.32/859,726.40
  6. Step 6: Final answer
    x = 540,596.36

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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.