Home / 700,639.23-966,953.57-428,886.70

Finding the Fourth Proportional to 700,639.23, 966,953.57 and 428,886.70

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Solution

The fourth proportional to 700,639.23, 966,953.57 and 428,886.70 is: 591,907.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,639.23 : 966,953.57 = 428,886.70 : x
  2. Step 2: Convert to fraction form
    700,639.23/966,953.57 = 428,886.70/x
  3. Step 3: Cross multiply
    700,639.23x = 966,953.57 × 428,886.70
  4. Step 4: Simplify right side
    700,639.23x = 414,713,521,128.70
  5. Step 5: Solve for x
    x = 414,713,521,128.70/700,639.23
  6. Step 6: Final answer
    x = 591,907.36

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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.