Home / 971,511.40-1,457,007.90-340,359.40

Finding the Fourth Proportional to 971,511.40, 1,457,007.90 and 340,359.40

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Solution

The fourth proportional to 971,511.40, 1,457,007.90 and 340,359.40 is: 510,448.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,511.40 : 1,457,007.90 = 340,359.40 : x
  2. Step 2: Convert to fraction form
    971,511.40/1,457,007.90 = 340,359.40/x
  3. Step 3: Cross multiply
    971,511.40x = 1,457,007.90 × 340,359.40
  4. Step 4: Simplify right side
    971,511.40x = 495,906,334,639.26
  5. Step 5: Solve for x
    x = 495,906,334,639.26/971,511.40
  6. Step 6: Final answer
    x = 510,448.29

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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.