Home / 860,143.95-1,290,379.28-283,802.22

Finding the Fourth Proportional to 860,143.95, 1,290,379.28 and 283,802.22

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Solution

The fourth proportional to 860,143.95, 1,290,379.28 and 283,802.22 is: 425,757.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,143.95 : 1,290,379.28 = 283,802.22 : x
  2. Step 2: Convert to fraction form
    860,143.95/1,290,379.28 = 283,802.22/x
  3. Step 3: Cross multiply
    860,143.95x = 1,290,379.28 × 283,802.22
  4. Step 4: Simplify right side
    860,143.95x = 366,212,502,886.99
  5. Step 5: Solve for x
    x = 366,212,502,886.99/860,143.95
  6. Step 6: Final answer
    x = 425,757.23

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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.