Home / 690,949.90-1,034,083.95-424,878.94

Finding the Fourth Proportional to 690,949.90, 1,034,083.95 and 424,878.94

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Solution

The fourth proportional to 690,949.90, 1,034,083.95 and 424,878.94 is: 635,878.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,949.90 : 1,034,083.95 = 424,878.94 : x
  2. Step 2: Convert to fraction form
    690,949.90/1,034,083.95 = 424,878.94/x
  3. Step 3: Cross multiply
    690,949.90x = 1,034,083.95 × 424,878.94
  4. Step 4: Simplify right side
    690,949.90x = 439,360,492,547.01
  5. Step 5: Solve for x
    x = 439,360,492,547.01/690,949.90
  6. Step 6: Final answer
    x = 635,878.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.