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Finding the Fourth Proportional to 528,645.30, 729,522.65 and 299,246.10

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Solution

The fourth proportional to 528,645.30, 729,522.65 and 299,246.10 is: 412,955.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,645.30 : 729,522.65 = 299,246.10 : x
  2. Step 2: Convert to fraction form
    528,645.30/729,522.65 = 299,246.10/x
  3. Step 3: Cross multiply
    528,645.30x = 729,522.65 × 299,246.10
  4. Step 4: Simplify right side
    528,645.30x = 218,306,805,886.57
  5. Step 5: Solve for x
    x = 218,306,805,886.57/528,645.30
  6. Step 6: Final answer
    x = 412,955.16

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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.