Home / 770,345.76-1,063,073.52-430,815.36

Finding the Fourth Proportional to 770,345.76, 1,063,073.52 and 430,815.36

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Solution

The fourth proportional to 770,345.76, 1,063,073.52 and 430,815.36 is: 594,523.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,345.76 : 1,063,073.52 = 430,815.36 : x
  2. Step 2: Convert to fraction form
    770,345.76/1,063,073.52 = 430,815.36/x
  3. Step 3: Cross multiply
    770,345.76x = 1,063,073.52 × 430,815.36
  4. Step 4: Simplify right side
    770,345.76x = 457,988,401,225.27
  5. Step 5: Solve for x
    x = 457,988,401,225.27/770,345.76
  6. Step 6: Final answer
    x = 594,523.17

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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.