Home / 971,390.40-1,457,085.60-340,222.20

Finding the Fourth Proportional to 971,390.40, 1,457,085.60 and 340,222.20

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Solution

The fourth proportional to 971,390.40, 1,457,085.60 and 340,222.20 is: 510,333.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,390.40 : 1,457,085.60 = 340,222.20 : x
  2. Step 2: Convert to fraction form
    971,390.40/1,457,085.60 = 340,222.20/x
  3. Step 3: Cross multiply
    971,390.40x = 1,457,085.60 × 340,222.20
  4. Step 4: Simplify right side
    971,390.40x = 495,732,868,420.32
  5. Step 5: Solve for x
    x = 495,732,868,420.32/971,390.40
  6. Step 6: Final answer
    x = 510,333.30

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Double scale
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Similar ratio
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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.