Home / 776,931.76-1,072,466.76-607,220.56

Finding the Fourth Proportional to 776,931.76, 1,072,466.76 and 607,220.56

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Solution

The fourth proportional to 776,931.76, 1,072,466.76 and 607,220.56 is: 838,199.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,931.76 : 1,072,466.76 = 607,220.56 : x
  2. Step 2: Convert to fraction form
    776,931.76/1,072,466.76 = 607,220.56/x
  3. Step 3: Cross multiply
    776,931.76x = 1,072,466.76 × 607,220.56
  4. Step 4: Simplify right side
    776,931.76x = 651,223,866,588.59
  5. Step 5: Solve for x
    x = 651,223,866,588.59/776,931.76
  6. Step 6: Final answer
    x = 838,199.57

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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.