Home / 877,009.40-1,315,514.10-497,783.60

Finding the Fourth Proportional to 877,009.40, 1,315,514.10 and 497,783.60

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Solution

The fourth proportional to 877,009.40, 1,315,514.10 and 497,783.60 is: 746,675.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,009.40 : 1,315,514.10 = 497,783.60 : x
  2. Step 2: Convert to fraction form
    877,009.40/1,315,514.10 = 497,783.60/x
  3. Step 3: Cross multiply
    877,009.40x = 1,315,514.10 × 497,783.60
  4. Step 4: Simplify right side
    877,009.40x = 654,841,344,548.76
  5. Step 5: Solve for x
    x = 654,841,344,548.76/877,009.40
  6. Step 6: Final answer
    x = 746,675.40

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Double scale
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Similar ratio
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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.