Home / 1,287,158.93-1,931,050.53-388,546.98

Finding the Fourth Proportional to 1,287,158.93, 1,931,050.53 and 388,546.98

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Solution

The fourth proportional to 1,287,158.93, 1,931,050.53 and 388,546.98 is: 582,914.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,158.93 : 1,931,050.53 = 388,546.98 : x
  2. Step 2: Convert to fraction form
    1,287,158.93/1,931,050.53 = 388,546.98/x
  3. Step 3: Cross multiply
    1,287,158.93x = 1,931,050.53 × 388,546.98
  4. Step 4: Simplify right side
    1,287,158.93x = 750,303,844,417.46
  5. Step 5: Solve for x
    x = 750,303,844,417.46/1,287,158.93
  6. Step 6: Final answer
    x = 582,914.69

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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.