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Finding the Fourth Proportional to 456,415.60, 684,623.40 and 350,127.40

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Solution

The fourth proportional to 456,415.60, 684,623.40 and 350,127.40 is: 525,191.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,415.60 : 684,623.40 = 350,127.40 : x
  2. Step 2: Convert to fraction form
    456,415.60/684,623.40 = 350,127.40/x
  3. Step 3: Cross multiply
    456,415.60x = 684,623.40 × 350,127.40
  4. Step 4: Simplify right side
    456,415.60x = 239,705,411,021.16
  5. Step 5: Solve for x
    x = 239,705,411,021.16/456,415.60
  6. Step 6: Final answer
    x = 525,191.10

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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.