Home / 690,743.47-1,036,821.93-570,417.16

Finding the Fourth Proportional to 690,743.47, 1,036,821.93 and 570,417.16

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Solution

The fourth proportional to 690,743.47, 1,036,821.93 and 570,417.16 is: 856,209.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,743.47 : 1,036,821.93 = 570,417.16 : x
  2. Step 2: Convert to fraction form
    690,743.47/1,036,821.93 = 570,417.16/x
  3. Step 3: Cross multiply
    690,743.47x = 1,036,821.93 × 570,417.16
  4. Step 4: Simplify right side
    690,743.47x = 591,421,020,736.32
  5. Step 5: Solve for x
    x = 591,421,020,736.32/690,743.47
  6. Step 6: Final answer
    x = 856,209.35

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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.