Home / 917,225.55-1,265,851.47-509,407.13

Finding the Fourth Proportional to 917,225.55, 1,265,851.47 and 509,407.13

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Solution

The fourth proportional to 917,225.55, 1,265,851.47 and 509,407.13 is: 703,026.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,225.55 : 1,265,851.47 = 509,407.13 : x
  2. Step 2: Convert to fraction form
    917,225.55/1,265,851.47 = 509,407.13/x
  3. Step 3: Cross multiply
    917,225.55x = 1,265,851.47 × 509,407.13
  4. Step 4: Simplify right side
    917,225.55x = 644,833,758,009.72
  5. Step 5: Solve for x
    x = 644,833,758,009.72/917,225.55
  6. Step 6: Final answer
    x = 703,026.38

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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.