Home / 879,501.76-1,213,739.52-497,521.60

Finding the Fourth Proportional to 879,501.76, 1,213,739.52 and 497,521.60

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Solution

The fourth proportional to 879,501.76, 1,213,739.52 and 497,521.60 is: 686,595.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,501.76 : 1,213,739.52 = 497,521.60 : x
  2. Step 2: Convert to fraction form
    879,501.76/1,213,739.52 = 497,521.60/x
  3. Step 3: Cross multiply
    879,501.76x = 1,213,739.52 × 497,521.60
  4. Step 4: Simplify right side
    879,501.76x = 603,861,627,973.63
  5. Step 5: Solve for x
    x = 603,861,627,973.63/879,501.76
  6. Step 6: Final answer
    x = 686,595.13

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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.