Home / 1,009,000.80-1,392,430.56-556,308

Finding the Fourth Proportional to 1,009,000.80, 1,392,430.56 and 556,308

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Solution

The fourth proportional to 1,009,000.80, 1,392,430.56 and 556,308 is: 767,710.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,000.80 : 1,392,430.56 = 556,308 : x
  2. Step 2: Convert to fraction form
    1,009,000.80/1,392,430.56 = 556,308/x
  3. Step 3: Cross multiply
    1,009,000.80x = 1,392,430.56 × 556,308
  4. Step 4: Simplify right side
    1,009,000.80x = 774,620,259,972.48
  5. Step 5: Solve for x
    x = 774,620,259,972.48/1,009,000.80
  6. Step 6: Final answer
    x = 767,710.25

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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.