Home / 670,358.58-1,005,865.65-315,407.94

Finding the Fourth Proportional to 670,358.58, 1,005,865.65 and 315,407.94

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Solution

The fourth proportional to 670,358.58, 1,005,865.65 and 315,407.94 is: 473,266.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,358.58 : 1,005,865.65 = 315,407.94 : x
  2. Step 2: Convert to fraction form
    670,358.58/1,005,865.65 = 315,407.94/x
  3. Step 3: Cross multiply
    670,358.58x = 1,005,865.65 × 315,407.94
  4. Step 4: Simplify right side
    670,358.58x = 317,258,012,583.26
  5. Step 5: Solve for x
    x = 317,258,012,583.26/670,358.58
  6. Step 6: Final answer
    x = 473,266.13

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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.