Home / 971,623.40-1,457,435.10-340,455.20

Finding the Fourth Proportional to 971,623.40, 1,457,435.10 and 340,455.20

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Solution

The fourth proportional to 971,623.40, 1,457,435.10 and 340,455.20 is: 510,682.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,623.40 : 1,457,435.10 = 340,455.20 : x
  2. Step 2: Convert to fraction form
    971,623.40/1,457,435.10 = 340,455.20/x
  3. Step 3: Cross multiply
    971,623.40x = 1,457,435.10 × 340,455.20
  4. Step 4: Simplify right side
    971,623.40x = 496,191,358,457.52
  5. Step 5: Solve for x
    x = 496,191,358,457.52/971,623.40
  6. Step 6: Final answer
    x = 510,682.80

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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.