Home / 1,390,297.16-2,085,482.20-443,666.96

Finding the Fourth Proportional to 1,390,297.16, 2,085,482.20 and 443,666.96

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Solution

The fourth proportional to 1,390,297.16, 2,085,482.20 and 443,666.96 is: 665,512.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,297.16 : 2,085,482.20 = 443,666.96 : x
  2. Step 2: Convert to fraction form
    1,390,297.16/2,085,482.20 = 443,666.96/x
  3. Step 3: Cross multiply
    1,390,297.16x = 2,085,482.20 × 443,666.96
  4. Step 4: Simplify right side
    1,390,297.16x = 925,259,547,808.11
  5. Step 5: Solve for x
    x = 925,259,547,808.11/1,390,297.16
  6. Step 6: Final answer
    x = 665,512.07

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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.