Home / 905,000.48-1,248,898.40-497,101.29

Finding the Fourth Proportional to 905,000.48, 1,248,898.40 and 497,101.29

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Solution

The fourth proportional to 905,000.48, 1,248,898.40 and 497,101.29 is: 685,998.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,000.48 : 1,248,898.40 = 497,101.29 : x
  2. Step 2: Convert to fraction form
    905,000.48/1,248,898.40 = 497,101.29/x
  3. Step 3: Cross multiply
    905,000.48x = 1,248,898.40 × 497,101.29
  4. Step 4: Simplify right side
    905,000.48x = 620,829,005,718.94
  5. Step 5: Solve for x
    x = 620,829,005,718.94/905,000.48
  6. Step 6: Final answer
    x = 685,998.54

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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.