Home / 709,439.51-979,048.15-403,560.23

Finding the Fourth Proportional to 709,439.51, 979,048.15 and 403,560.23

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Solution

The fourth proportional to 709,439.51, 979,048.15 and 403,560.23 is: 556,925.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,439.51 : 979,048.15 = 403,560.23 : x
  2. Step 2: Convert to fraction form
    709,439.51/979,048.15 = 403,560.23/x
  3. Step 3: Cross multiply
    709,439.51x = 979,048.15 × 403,560.23
  4. Step 4: Simplify right side
    709,439.51x = 395,104,890,690.93
  5. Step 5: Solve for x
    x = 395,104,890,690.93/709,439.51
  6. Step 6: Final answer
    x = 556,925.41

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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.