Home / 1,272,030.15-1,908,015.29-312,484.25

Finding the Fourth Proportional to 1,272,030.15, 1,908,015.29 and 312,484.25

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Solution

The fourth proportional to 1,272,030.15, 1,908,015.29 and 312,484.25 is: 468,719.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,030.15 : 1,908,015.29 = 312,484.25 : x
  2. Step 2: Convert to fraction form
    1,272,030.15/1,908,015.29 = 312,484.25/x
  3. Step 3: Cross multiply
    1,272,030.15x = 1,908,015.29 × 312,484.25
  4. Step 4: Simplify right side
    1,272,030.15x = 596,224,715,781.69
  5. Step 5: Solve for x
    x = 596,224,715,781.69/1,272,030.15
  6. Step 6: Final answer
    x = 468,719.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.