Home / 1,072,899-1,480,547.70-643,095.72

Finding the Fourth Proportional to 1,072,899, 1,480,547.70 and 643,095.72

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Solution

The fourth proportional to 1,072,899, 1,480,547.70 and 643,095.72 is: 887,440.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,899 : 1,480,547.70 = 643,095.72 : x
  2. Step 2: Convert to fraction form
    1,072,899/1,480,547.70 = 643,095.72/x
  3. Step 3: Cross multiply
    1,072,899x = 1,480,547.70 × 643,095.72
  4. Step 4: Simplify right side
    1,072,899x = 952,133,889,125.84
  5. Step 5: Solve for x
    x = 952,133,889,125.84/1,072,899
  6. Step 6: Final answer
    x = 887,440.37

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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.