Home / 709,640.30-1,064,132.40-310,075.40

Finding the Fourth Proportional to 709,640.30, 1,064,132.40 and 310,075.40

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Solution

The fourth proportional to 709,640.30, 1,064,132.40 and 310,075.40 is: 464,969.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,640.30 : 1,064,132.40 = 310,075.40 : x
  2. Step 2: Convert to fraction form
    709,640.30/1,064,132.40 = 310,075.40/x
  3. Step 3: Cross multiply
    709,640.30x = 1,064,132.40 × 310,075.40
  4. Step 4: Simplify right side
    709,640.30x = 329,961,279,582.96
  5. Step 5: Solve for x
    x = 329,961,279,582.96/709,640.30
  6. Step 6: Final answer
    x = 464,969.76

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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.