Home / 977,116.40-1,465,674.60-345,948.20

Finding the Fourth Proportional to 977,116.40, 1,465,674.60 and 345,948.20

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Solution

The fourth proportional to 977,116.40, 1,465,674.60 and 345,948.20 is: 518,922.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,116.40 : 1,465,674.60 = 345,948.20 : x
  2. Step 2: Convert to fraction form
    977,116.40/1,465,674.60 = 345,948.20/x
  3. Step 3: Cross multiply
    977,116.40x = 1,465,674.60 × 345,948.20
  4. Step 4: Simplify right side
    977,116.40x = 507,047,489,655.72
  5. Step 5: Solve for x
    x = 507,047,489,655.72/977,116.40
  6. Step 6: Final answer
    x = 518,922.30

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Double scale
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Similar ratio
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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.