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Finding the Fourth Proportional to 657,703.90, 986,227.80 and 302,316.40

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Solution

The fourth proportional to 657,703.90, 986,227.80 and 302,316.40 is: 453,323.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,703.90 : 986,227.80 = 302,316.40 : x
  2. Step 2: Convert to fraction form
    657,703.90/986,227.80 = 302,316.40/x
  3. Step 3: Cross multiply
    657,703.90x = 986,227.80 × 302,316.40
  4. Step 4: Simplify right side
    657,703.90x = 298,152,838,075.92
  5. Step 5: Solve for x
    x = 298,152,838,075.92/657,703.90
  6. Step 6: Final answer
    x = 453,323.81

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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.