Home / 763,461.40-1,053,673.50-461,821.72

Finding the Fourth Proportional to 763,461.40, 1,053,673.50 and 461,821.72

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Solution

The fourth proportional to 763,461.40, 1,053,673.50 and 461,821.72 is: 637,372.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,461.40 : 1,053,673.50 = 461,821.72 : x
  2. Step 2: Convert to fraction form
    763,461.40/1,053,673.50 = 461,821.72/x
  3. Step 3: Cross multiply
    763,461.40x = 1,053,673.50 × 461,821.72
  4. Step 4: Simplify right side
    763,461.40x = 486,609,308,088.42
  5. Step 5: Solve for x
    x = 486,609,308,088.42/763,461.40
  6. Step 6: Final answer
    x = 637,372.51

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.