Home / 763,445.53-1,053,602.31-423,916.21

Finding the Fourth Proportional to 763,445.53, 1,053,602.31 and 423,916.21

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Solution

The fourth proportional to 763,445.53, 1,053,602.31 and 423,916.21 is: 585,030.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,445.53 : 1,053,602.31 = 423,916.21 : x
  2. Step 2: Convert to fraction form
    763,445.53/1,053,602.31 = 423,916.21/x
  3. Step 3: Cross multiply
    763,445.53x = 1,053,602.31 × 423,916.21
  4. Step 4: Simplify right side
    763,445.53x = 446,639,098,102.45
  5. Step 5: Solve for x
    x = 446,639,098,102.45/763,445.53
  6. Step 6: Final answer
    x = 585,030.73

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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.