Home / 745,718.40-1,118,966.40-325,036.80

Finding the Fourth Proportional to 745,718.40, 1,118,966.40 and 325,036.80

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Solution

The fourth proportional to 745,718.40, 1,118,966.40 and 325,036.80 is: 487,724.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,718.40 : 1,118,966.40 = 325,036.80 : x
  2. Step 2: Convert to fraction form
    745,718.40/1,118,966.40 = 325,036.80/x
  3. Step 3: Cross multiply
    745,718.40x = 1,118,966.40 × 325,036.80
  4. Step 4: Simplify right side
    745,718.40x = 363,705,257,963.52
  5. Step 5: Solve for x
    x = 363,705,257,963.52/745,718.40
  6. Step 6: Final answer
    x = 487,724.67

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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.