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Finding the Fourth Proportional to 634,527.36, 875,632.32 and 408,172.32

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Solution

The fourth proportional to 634,527.36, 875,632.32 and 408,172.32 is: 563,267.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,527.36 : 875,632.32 = 408,172.32 : x
  2. Step 2: Convert to fraction form
    634,527.36/875,632.32 = 408,172.32/x
  3. Step 3: Cross multiply
    634,527.36x = 875,632.32 × 408,172.32
  4. Step 4: Simplify right side
    634,527.36x = 357,408,875,521.38
  5. Step 5: Solve for x
    x = 357,408,875,521.38/634,527.36
  6. Step 6: Final answer
    x = 563,267.87

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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.