Home / 779,459.43-1,075,744.77-648,405.57

Finding the Fourth Proportional to 779,459.43, 1,075,744.77 and 648,405.57

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Solution

The fourth proportional to 779,459.43, 1,075,744.77 and 648,405.57 is: 894,875.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,459.43 : 1,075,744.77 = 648,405.57 : x
  2. Step 2: Convert to fraction form
    779,459.43/1,075,744.77 = 648,405.57/x
  3. Step 3: Cross multiply
    779,459.43x = 1,075,744.77 × 648,405.57
  4. Step 4: Simplify right side
    779,459.43x = 697,518,900,766.37
  5. Step 5: Solve for x
    x = 697,518,900,766.37/779,459.43
  6. Step 6: Final answer
    x = 894,875.18

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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.