Home / 759,853.95-1,139,782.34-310,574.49

Finding the Fourth Proportional to 759,853.95, 1,139,782.34 and 310,574.49

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Solution

The fourth proportional to 759,853.95, 1,139,782.34 and 310,574.49 is: 465,862.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,853.95 : 1,139,782.34 = 310,574.49 : x
  2. Step 2: Convert to fraction form
    759,853.95/1,139,782.34 = 310,574.49/x
  3. Step 3: Cross multiply
    759,853.95x = 1,139,782.34 × 310,574.49
  4. Step 4: Simplify right side
    759,853.95x = 353,987,318,956.51
  5. Step 5: Solve for x
    x = 353,987,318,956.51/759,853.95
  6. Step 6: Final answer
    x = 465,862.31

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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.