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Finding the Fourth Proportional to 589,045.40, 883,568.10 and 402,421.40

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Solution

The fourth proportional to 589,045.40, 883,568.10 and 402,421.40 is: 603,632.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,045.40 : 883,568.10 = 402,421.40 : x
  2. Step 2: Convert to fraction form
    589,045.40/883,568.10 = 402,421.40/x
  3. Step 3: Cross multiply
    589,045.40x = 883,568.10 × 402,421.40
  4. Step 4: Simplify right side
    589,045.40x = 355,566,711,797.34
  5. Step 5: Solve for x
    x = 355,566,711,797.34/589,045.40
  6. Step 6: Final answer
    x = 603,632.10

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