Home / 790,017.71-1,090,255.39-445,865.67

Finding the Fourth Proportional to 790,017.71, 1,090,255.39 and 445,865.67

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Solution

The fourth proportional to 790,017.71, 1,090,255.39 and 445,865.67 is: 615,312.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,017.71 : 1,090,255.39 = 445,865.67 : x
  2. Step 2: Convert to fraction form
    790,017.71/1,090,255.39 = 445,865.67/x
  3. Step 3: Cross multiply
    790,017.71x = 1,090,255.39 × 445,865.67
  4. Step 4: Simplify right side
    790,017.71x = 486,107,443,225.42
  5. Step 5: Solve for x
    x = 486,107,443,225.42/790,017.71
  6. Step 6: Final answer
    x = 615,312.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.