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Finding the Fourth Proportional to 707,220.90, 975,986.01 and 435,445.61

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Solution

The fourth proportional to 707,220.90, 975,986.01 and 435,445.61 is: 600,927.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,220.90 : 975,986.01 = 435,445.61 : x
  2. Step 2: Convert to fraction form
    707,220.90/975,986.01 = 435,445.61/x
  3. Step 3: Cross multiply
    707,220.90x = 975,986.01 × 435,445.61
  4. Step 4: Simplify right side
    707,220.90x = 424,988,818,595.99
  5. Step 5: Solve for x
    x = 424,988,818,595.99/707,220.90
  6. Step 6: Final answer
    x = 600,927.97

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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.