Home / 786,206.56-1,084,995.12-428,510.56

Finding the Fourth Proportional to 786,206.56, 1,084,995.12 and 428,510.56

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Solution

The fourth proportional to 786,206.56, 1,084,995.12 and 428,510.56 is: 591,360.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,206.56 : 1,084,995.12 = 428,510.56 : x
  2. Step 2: Convert to fraction form
    786,206.56/1,084,995.12 = 428,510.56/x
  3. Step 3: Cross multiply
    786,206.56x = 1,084,995.12 × 428,510.56
  4. Step 4: Simplify right side
    786,206.56x = 464,931,866,468.47
  5. Step 5: Solve for x
    x = 464,931,866,468.47/786,206.56
  6. Step 6: Final answer
    x = 591,360.96

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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.