Home / 977,489.40-1,465,164.90-346,078.20

Finding the Fourth Proportional to 977,489.40, 1,465,164.90 and 346,078.20

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Solution

The fourth proportional to 977,489.40, 1,465,164.90 and 346,078.20 is: 518,738.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,489.40 : 1,465,164.90 = 346,078.20 : x
  2. Step 2: Convert to fraction form
    977,489.40/1,465,164.90 = 346,078.20/x
  3. Step 3: Cross multiply
    977,489.40x = 1,465,164.90 × 346,078.20
  4. Step 4: Simplify right side
    977,489.40x = 507,061,631,295.18
  5. Step 5: Solve for x
    x = 507,061,631,295.18/977,489.40
  6. Step 6: Final answer
    x = 518,738.75

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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.