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Finding the Fourth Proportional to 520,088.60, 779,549.70 and 267,271.40

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Solution

The fourth proportional to 520,088.60, 779,549.70 and 267,271.40 is: 400,607.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,088.60 : 779,549.70 = 267,271.40 : x
  2. Step 2: Convert to fraction form
    520,088.60/779,549.70 = 267,271.40/x
  3. Step 3: Cross multiply
    520,088.60x = 779,549.70 × 267,271.40
  4. Step 4: Simplify right side
    520,088.60x = 208,351,339,688.58
  5. Step 5: Solve for x
    x = 208,351,339,688.58/520,088.60
  6. Step 6: Final answer
    x = 400,607.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.