Finding the Fourth Proportional to 1,292,587.99, 1,783,309.71 and 748,426.75
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Solution
The fourth proportional to 1,292,587.99, 1,783,309.71 and 748,426.75 is: 1,032,561.57
Step by Step Solution
- Step 1: Write the proportion equation
1,292,587.99 : 1,783,309.71 = 748,426.75 : x - Step 2: Convert to fraction form
1,292,587.99/1,783,309.71 = 748,426.75/x - Step 3: Cross multiply
1,292,587.99x = 1,783,309.71 × 748,426.75 - Step 4: Simplify right side
1,292,587.99x = 1,334,676,690,498.74 - Step 5: Solve for x
x = 1,334,676,690,498.74/1,292,587.99 - Step 6: Final answer
x = 1,032,561.57
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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.