Home / 977,810.60-1,466,715.90-859,615.40

Finding the Fourth Proportional to 977,810.60, 1,466,715.90 and 859,615.40

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Solution

The fourth proportional to 977,810.60, 1,466,715.90 and 859,615.40 is: 1,289,423.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,810.60 : 1,466,715.90 = 859,615.40 : x
  2. Step 2: Convert to fraction form
    977,810.60/1,466,715.90 = 859,615.40/x
  3. Step 3: Cross multiply
    977,810.60x = 1,466,715.90 × 859,615.40
  4. Step 4: Simplify right side
    977,810.60x = 1,260,811,575,064.86
  5. Step 5: Solve for x
    x = 1,260,811,575,064.86/977,810.60
  6. Step 6: Final answer
    x = 1,289,423.10

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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.