Home / 911,248.12-1,257,526.50-497,790.60

Finding the Fourth Proportional to 911,248.12, 1,257,526.50 and 497,790.60

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Solution

The fourth proportional to 911,248.12, 1,257,526.50 and 497,790.60 is: 686,953.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,248.12 : 1,257,526.50 = 497,790.60 : x
  2. Step 2: Convert to fraction form
    911,248.12/1,257,526.50 = 497,790.60/x
  3. Step 3: Cross multiply
    911,248.12x = 1,257,526.50 × 497,790.60
  4. Step 4: Simplify right side
    911,248.12x = 625,984,870,950.90
  5. Step 5: Solve for x
    x = 625,984,870,950.90/911,248.12
  6. Step 6: Final answer
    x = 686,953.26

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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.