Home / 971,318.40-1,456,588.80-339,907.20

Finding the Fourth Proportional to 971,318.40, 1,456,588.80 and 339,907.20

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Solution

The fourth proportional to 971,318.40, 1,456,588.80 and 339,907.20 is: 509,724.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,318.40 : 1,456,588.80 = 339,907.20 : x
  2. Step 2: Convert to fraction form
    971,318.40/1,456,588.80 = 339,907.20/x
  3. Step 3: Cross multiply
    971,318.40x = 1,456,588.80 × 339,907.20
  4. Step 4: Simplify right side
    971,318.40x = 495,105,020,559.36
  5. Step 5: Solve for x
    x = 495,105,020,559.36/971,318.40
  6. Step 6: Final answer
    x = 509,724.74

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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.