Home / 905,291.93-1,249,411.49-542,915.15

Finding the Fourth Proportional to 905,291.93, 1,249,411.49 and 542,915.15

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Solution

The fourth proportional to 905,291.93, 1,249,411.49 and 542,915.15 is: 749,288.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,291.93 : 1,249,411.49 = 542,915.15 : x
  2. Step 2: Convert to fraction form
    905,291.93/1,249,411.49 = 542,915.15/x
  3. Step 3: Cross multiply
    905,291.93x = 1,249,411.49 × 542,915.15
  4. Step 4: Simplify right side
    905,291.93x = 678,324,417,543.44
  5. Step 5: Solve for x
    x = 678,324,417,543.44/905,291.93
  6. Step 6: Final answer
    x = 749,288.05

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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.