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Finding the Fourth Proportional to 875,875.70, 1,314,007.95 and 402,446.90

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Solution

The fourth proportional to 875,875.70, 1,314,007.95 and 402,446.90 is: 603,759.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,875.70 : 1,314,007.95 = 402,446.90 : x
  2. Step 2: Convert to fraction form
    875,875.70/1,314,007.95 = 402,446.90/x
  3. Step 3: Cross multiply
    875,875.70x = 1,314,007.95 × 402,446.90
  4. Step 4: Simplify right side
    875,875.70x = 528,818,426,052.86
  5. Step 5: Solve for x
    x = 528,818,426,052.86/875,875.70
  6. Step 6: Final answer
    x = 603,759.67

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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.