Home / 779,682.92-1,075,971.40-457,398.50

Finding the Fourth Proportional to 779,682.92, 1,075,971.40 and 457,398.50

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Solution

The fourth proportional to 779,682.92, 1,075,971.40 and 457,398.50 is: 631,215.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,682.92 : 1,075,971.40 = 457,398.50 : x
  2. Step 2: Convert to fraction form
    779,682.92/1,075,971.40 = 457,398.50/x
  3. Step 3: Cross multiply
    779,682.92x = 1,075,971.40 × 457,398.50
  4. Step 4: Simplify right side
    779,682.92x = 492,147,704,402.90
  5. Step 5: Solve for x
    x = 492,147,704,402.90/779,682.92
  6. Step 6: Final answer
    x = 631,215.19

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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.