Home / 760,178.34-1,049,002.65-420,626.34

Finding the Fourth Proportional to 760,178.34, 1,049,002.65 and 420,626.34

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Solution

The fourth proportional to 760,178.34, 1,049,002.65 and 420,626.34 is: 580,440.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,178.34 : 1,049,002.65 = 420,626.34 : x
  2. Step 2: Convert to fraction form
    760,178.34/1,049,002.65 = 420,626.34/x
  3. Step 3: Cross multiply
    760,178.34x = 1,049,002.65 × 420,626.34
  4. Step 4: Simplify right side
    760,178.34x = 441,238,145,319.80
  5. Step 5: Solve for x
    x = 441,238,145,319.80/760,178.34
  6. Step 6: Final answer
    x = 580,440.30

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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.