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Finding the Fourth Proportional to 619,045.72, 852,106.98 and 542,384.08

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Solution

The fourth proportional to 619,045.72, 852,106.98 and 542,384.08 is: 746,583.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,045.72 : 852,106.98 = 542,384.08 : x
  2. Step 2: Convert to fraction form
    619,045.72/852,106.98 = 542,384.08/x
  3. Step 3: Cross multiply
    619,045.72x = 852,106.98 × 542,384.08
  4. Step 4: Simplify right side
    619,045.72x = 462,169,260,408.88
  5. Step 5: Solve for x
    x = 462,169,260,408.88/619,045.72
  6. Step 6: Final answer
    x = 746,583.40

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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.