Home / 977,477.70-1,466,216.55-660,216.90

Finding the Fourth Proportional to 977,477.70, 1,466,216.55 and 660,216.90

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Solution

The fourth proportional to 977,477.70, 1,466,216.55 and 660,216.90 is: 990,325.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,477.70 : 1,466,216.55 = 660,216.90 : x
  2. Step 2: Convert to fraction form
    977,477.70/1,466,216.55 = 660,216.90/x
  3. Step 3: Cross multiply
    977,477.70x = 1,466,216.55 × 660,216.90
  4. Step 4: Simplify right side
    977,477.70x = 968,020,945,369.70
  5. Step 5: Solve for x
    x = 968,020,945,369.70/977,477.70
  6. Step 6: Final answer
    x = 990,325.35

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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.