Home / 717,401,646.40-1,076,291,426.40-257,291,838.40

Finding the Fourth Proportional to 717,401,646.40, 1,076,291,426.40 and 257,291,838.40

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Solution

The fourth proportional to 717,401,646.40, 1,076,291,426.40 and 257,291,838.40 is: 386,005,525.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,401,646.40 : 1,076,291,426.40 = 257,291,838.40 : x
  2. Step 2: Convert to fraction form
    717,401,646.40/1,076,291,426.40 = 257,291,838.40/x
  3. Step 3: Cross multiply
    717,401,646.40x = 1,076,291,426.40 × 257,291,838.40
  4. Step 4: Simplify right side
    717,401,646.40x = 276,920,999,752,614,336
  5. Step 5: Solve for x
    x = 276,920,999,752,614,336/717,401,646.40
  6. Step 6: Final answer
    x = 386,005,525.83

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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.