Finding the Fourth Proportional to 749,637.12, 1,035,129.60 and 535,434.24
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Solution
The fourth proportional to 749,637.12, 1,035,129.60 and 535,434.24 is: 739,349.50
Step by Step Solution
- Step 1: Write the proportion equation
749,637.12 : 1,035,129.60 = 535,434.24 : x - Step 2: Convert to fraction form
749,637.12/1,035,129.60 = 535,434.24/x - Step 3: Cross multiply
749,637.12x = 1,035,129.60 × 535,434.24 - Step 4: Simplify right side
749,637.12x = 554,243,830,677.50 - Step 5: Solve for x
x = 554,243,830,677.50/749,637.12 - Step 6: Final answer
x = 739,349.50
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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.