Home / 905,398.02-1,249,483.05-542,880.90

Finding the Fourth Proportional to 905,398.02, 1,249,483.05 and 542,880.90

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Solution

The fourth proportional to 905,398.02, 1,249,483.05 and 542,880.90 is: 749,195.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,398.02 : 1,249,483.05 = 542,880.90 : x
  2. Step 2: Convert to fraction form
    905,398.02/1,249,483.05 = 542,880.90/x
  3. Step 3: Cross multiply
    905,398.02x = 1,249,483.05 × 542,880.90
  4. Step 4: Simplify right side
    905,398.02x = 678,320,482,718.75
  5. Step 5: Solve for x
    x = 678,320,482,718.75/905,398.02
  6. Step 6: Final answer
    x = 749,195.90

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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.