Home / 763,125.90-1,053,117.81-476,812.05

Finding the Fourth Proportional to 763,125.90, 1,053,117.81 and 476,812.05

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Solution

The fourth proportional to 763,125.90, 1,053,117.81 and 476,812.05 is: 658,003.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,125.90 : 1,053,117.81 = 476,812.05 : x
  2. Step 2: Convert to fraction form
    763,125.90/1,053,117.81 = 476,812.05/x
  3. Step 3: Cross multiply
    763,125.90x = 1,053,117.81 × 476,812.05
  4. Step 4: Simplify right side
    763,125.90x = 502,139,261,877.61
  5. Step 5: Solve for x
    x = 502,139,261,877.61/763,125.90
  6. Step 6: Final answer
    x = 658,003.17

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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.