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Finding the Fourth Proportional to 562,510.18, 776,259.48 and 307,860.76

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Solution

The fourth proportional to 562,510.18, 776,259.48 and 307,860.76 is: 424,845.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,510.18 : 776,259.48 = 307,860.76 : x
  2. Step 2: Convert to fraction form
    562,510.18/776,259.48 = 307,860.76/x
  3. Step 3: Cross multiply
    562,510.18x = 776,259.48 × 307,860.76
  4. Step 4: Simplify right side
    562,510.18x = 238,979,833,470.01
  5. Step 5: Solve for x
    x = 238,979,833,470.01/562,510.18
  6. Step 6: Final answer
    x = 424,845.35

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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.