Home / 884,386.40-1,220,496.48-497,323.60

Finding the Fourth Proportional to 884,386.40, 1,220,496.48 and 497,323.60

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Solution

The fourth proportional to 884,386.40, 1,220,496.48 and 497,323.60 is: 686,330.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,386.40 : 1,220,496.48 = 497,323.60 : x
  2. Step 2: Convert to fraction form
    884,386.40/1,220,496.48 = 497,323.60/x
  3. Step 3: Cross multiply
    884,386.40x = 1,220,496.48 × 497,323.60
  4. Step 4: Simplify right side
    884,386.40x = 606,981,703,220.93
  5. Step 5: Solve for x
    x = 606,981,703,220.93/884,386.40
  6. Step 6: Final answer
    x = 686,330.89

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Double scale
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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.