Home / 691,130.60-1,036,695.90-651,764.60

Finding the Fourth Proportional to 691,130.60, 1,036,695.90 and 651,764.60

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Solution

The fourth proportional to 691,130.60, 1,036,695.90 and 651,764.60 is: 977,646.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,130.60 : 1,036,695.90 = 651,764.60 : x
  2. Step 2: Convert to fraction form
    691,130.60/1,036,695.90 = 651,764.60/x
  3. Step 3: Cross multiply
    691,130.60x = 1,036,695.90 × 651,764.60
  4. Step 4: Simplify right side
    691,130.60x = 675,681,688,585.14
  5. Step 5: Solve for x
    x = 675,681,688,585.14/691,130.60
  6. Step 6: Final answer
    x = 977,646.90

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1.5x scale

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.