Finding the Fourth Proportional to 1,142,130.84, 1,575,550.94 and 774,483.66
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Solution
The fourth proportional to 1,142,130.84, 1,575,550.94 and 774,483.66 is: 1,068,387.63
Step by Step Solution
- Step 1: Write the proportion equation
1,142,130.84 : 1,575,550.94 = 774,483.66 : x - Step 2: Convert to fraction form
1,142,130.84/1,575,550.94 = 774,483.66/x - Step 3: Cross multiply
1,142,130.84x = 1,575,550.94 × 774,483.66 - Step 4: Simplify right side
1,142,130.84x = 1,220,238,458,527.64 - Step 5: Solve for x
x = 1,220,238,458,527.64/1,142,130.84 - Step 6: Final answer
x = 1,068,387.63
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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.