Home / 950,506.34-1,311,698.48-520,802.78

Finding the Fourth Proportional to 950,506.34, 1,311,698.48 and 520,802.78

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Solution

The fourth proportional to 950,506.34, 1,311,698.48 and 520,802.78 is: 718,707.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    950,506.34 : 1,311,698.48 = 520,802.78 : x
  2. Step 2: Convert to fraction form
    950,506.34/1,311,698.48 = 520,802.78/x
  3. Step 3: Cross multiply
    950,506.34x = 1,311,698.48 × 520,802.78
  4. Step 4: Simplify right side
    950,506.34x = 683,136,214,905.77
  5. Step 5: Solve for x
    x = 683,136,214,905.77/950,506.34
  6. Step 6: Final answer
    x = 718,707.69

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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.