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Finding the Fourth Proportional to 670,574.30, 925,322.55 and 384,106.46

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Solution

The fourth proportional to 670,574.30, 925,322.55 and 384,106.46 is: 530,026.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,574.30 : 925,322.55 = 384,106.46 : x
  2. Step 2: Convert to fraction form
    670,574.30/925,322.55 = 384,106.46/x
  3. Step 3: Cross multiply
    670,574.30x = 925,322.55 × 384,106.46
  4. Step 4: Simplify right side
    670,574.30x = 355,422,369,038.67
  5. Step 5: Solve for x
    x = 355,422,369,038.67/670,574.30
  6. Step 6: Final answer
    x = 530,026.83

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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.