Finding the Fourth Proportional to 519,437.99, 716,835.65 and 286,864.20
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Solution
The fourth proportional to 519,437.99, 716,835.65 and 286,864.20 is: 395,878.79
Step by Step Solution
- Step 1: Write the proportion equation
519,437.99 : 716,835.65 = 286,864.20 : x - Step 2: Convert to fraction form
519,437.99/716,835.65 = 286,864.20/x - Step 3: Cross multiply
519,437.99x = 716,835.65 × 286,864.20 - Step 4: Simplify right side
519,437.99x = 205,634,483,834.41 - Step 5: Solve for x
x = 205,634,483,834.41/519,437.99 - Step 6: Final answer
x = 395,878.79
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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.