Home / 710,069.34-979,890.71-387,779.52

Finding the Fourth Proportional to 710,069.34, 979,890.71 and 387,779.52

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Solution

The fourth proportional to 710,069.34, 979,890.71 and 387,779.52 is: 535,133.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,069.34 : 979,890.71 = 387,779.52 : x
  2. Step 2: Convert to fraction form
    710,069.34/979,890.71 = 387,779.52/x
  3. Step 3: Cross multiply
    710,069.34x = 979,890.71 × 387,779.52
  4. Step 4: Simplify right side
    710,069.34x = 379,981,547,237.36
  5. Step 5: Solve for x
    x = 379,981,547,237.36/710,069.34
  6. Step 6: Final answer
    x = 535,133.02

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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.