Home / 977,095.80-1,465,643.70-312,247.80

Finding the Fourth Proportional to 977,095.80, 1,465,643.70 and 312,247.80

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Solution

The fourth proportional to 977,095.80, 1,465,643.70 and 312,247.80 is: 468,371.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,095.80 : 1,465,643.70 = 312,247.80 : x
  2. Step 2: Convert to fraction form
    977,095.80/1,465,643.70 = 312,247.80/x
  3. Step 3: Cross multiply
    977,095.80x = 1,465,643.70 × 312,247.80
  4. Step 4: Simplify right side
    977,095.80x = 457,644,020,908.86
  5. Step 5: Solve for x
    x = 457,644,020,908.86/977,095.80
  6. Step 6: Final answer
    x = 468,371.70

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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.