Home / 830,102.61-1,245,284.99-290,509.57

Finding the Fourth Proportional to 830,102.61, 1,245,284.99 and 290,509.57

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Solution

The fourth proportional to 830,102.61, 1,245,284.99 and 290,509.57 is: 435,810.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,102.61 : 1,245,284.99 = 290,509.57 : x
  2. Step 2: Convert to fraction form
    830,102.61/1,245,284.99 = 290,509.57/x
  3. Step 3: Cross multiply
    830,102.61x = 1,245,284.99 × 290,509.57
  4. Step 4: Simplify right side
    830,102.61x = 361,767,208,165.82
  5. Step 5: Solve for x
    x = 361,767,208,165.82/830,102.61
  6. Step 6: Final answer
    x = 435,810.23

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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.