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Finding the Fourth Proportional to 580,860.40, 871,290.60 and 565,308.40

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Solution

The fourth proportional to 580,860.40, 871,290.60 and 565,308.40 is: 847,962.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,860.40 : 871,290.60 = 565,308.40 : x
  2. Step 2: Convert to fraction form
    580,860.40/871,290.60 = 565,308.40/x
  3. Step 3: Cross multiply
    580,860.40x = 871,290.60 × 565,308.40
  4. Step 4: Simplify right side
    580,860.40x = 492,547,895,021.04
  5. Step 5: Solve for x
    x = 492,547,895,021.04/580,860.40
  6. Step 6: Final answer
    x = 847,962.60

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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.