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Finding the Fourth Proportional to 525,472.12, 785,328.91 and 383,616.12

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Solution

The fourth proportional to 525,472.12, 785,328.91 and 383,616.12 is: 573,322.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,472.12 : 785,328.91 = 383,616.12 : x
  2. Step 2: Convert to fraction form
    525,472.12/785,328.91 = 383,616.12/x
  3. Step 3: Cross multiply
    525,472.12x = 785,328.91 × 383,616.12
  4. Step 4: Simplify right side
    525,472.12x = 301,264,827,414.71
  5. Step 5: Solve for x
    x = 301,264,827,414.71/525,472.12
  6. Step 6: Final answer
    x = 573,322.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.