Home / 915,316.32-1,262,875.44-528,101.04

Finding the Fourth Proportional to 915,316.32, 1,262,875.44 and 528,101.04

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Solution

The fourth proportional to 915,316.32, 1,262,875.44 and 528,101.04 is: 728,628.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,316.32 : 1,262,875.44 = 528,101.04 : x
  2. Step 2: Convert to fraction form
    915,316.32/1,262,875.44 = 528,101.04/x
  3. Step 3: Cross multiply
    915,316.32x = 1,262,875.44 × 528,101.04
  4. Step 4: Simplify right side
    915,316.32x = 666,925,833,254.46
  5. Step 5: Solve for x
    x = 666,925,833,254.46/915,316.32
  6. Step 6: Final answer
    x = 728,628.80

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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.