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Finding the Fourth Proportional to 556,758.16, 769,058.76 and 426,908.68

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Solution

The fourth proportional to 556,758.16, 769,058.76 and 426,908.68 is: 589,695.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,758.16 : 769,058.76 = 426,908.68 : x
  2. Step 2: Convert to fraction form
    556,758.16/769,058.76 = 426,908.68/x
  3. Step 3: Cross multiply
    556,758.16x = 769,058.76 × 426,908.68
  4. Step 4: Simplify right side
    556,758.16x = 328,317,860,074.04
  5. Step 5: Solve for x
    x = 328,317,860,074.04/556,758.16
  6. Step 6: Final answer
    x = 589,695.64

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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.