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Finding the Fourth Proportional to 562,510.76, 776,284.63 and 307,861.88

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Solution

The fourth proportional to 562,510.76, 776,284.63 and 307,861.88 is: 424,860.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,510.76 : 776,284.63 = 307,861.88 : x
  2. Step 2: Convert to fraction form
    562,510.76/776,284.63 = 307,861.88/x
  3. Step 3: Cross multiply
    562,510.76x = 776,284.63 × 307,861.88
  4. Step 4: Simplify right side
    562,510.76x = 238,988,440,955.83
  5. Step 5: Solve for x
    x = 238,988,440,955.83/562,510.76
  6. Step 6: Final answer
    x = 424,860.22

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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.