Home / 708,384.76-977,571.33-402,461.67

Finding the Fourth Proportional to 708,384.76, 977,571.33 and 402,461.67

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Solution

The fourth proportional to 708,384.76, 977,571.33 and 402,461.67 is: 555,397.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,384.76 : 977,571.33 = 402,461.67 : x
  2. Step 2: Convert to fraction form
    708,384.76/977,571.33 = 402,461.67/x
  3. Step 3: Cross multiply
    708,384.76x = 977,571.33 × 402,461.67
  4. Step 4: Simplify right side
    708,384.76x = 393,434,990,015.92
  5. Step 5: Solve for x
    x = 393,434,990,015.92/708,384.76
  6. Step 6: Final answer
    x = 555,397.31

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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.