Home / 570,108.52-786,738.66-315,459.88

Finding the Fourth Proportional to 570,108.52, 786,738.66 and 315,459.88

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Solution

The fourth proportional to 570,108.52, 786,738.66 and 315,459.88 is: 435,328.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,108.52 : 786,738.66 = 315,459.88 : x
  2. Step 2: Convert to fraction form
    570,108.52/786,738.66 = 315,459.88/x
  3. Step 3: Cross multiply
    570,108.52x = 786,738.66 × 315,459.88
  4. Step 4: Simplify right side
    570,108.52x = 248,184,483,274.96
  5. Step 5: Solve for x
    x = 248,184,483,274.96/570,108.52
  6. Step 6: Final answer
    x = 435,328.49

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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.