Finding the Fourth Proportional to 961,355.99, 1,326,143.95 and 616,807.20
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Solution
The fourth proportional to 961,355.99, 1,326,143.95 and 616,807.20 is: 850,855.61
Step by Step Solution
- Step 1: Write the proportion equation
961,355.99 : 1,326,143.95 = 616,807.20 : x - Step 2: Convert to fraction form
961,355.99/1,326,143.95 = 616,807.20/x - Step 3: Cross multiply
961,355.99x = 1,326,143.95 × 616,807.20 - Step 4: Simplify right side
961,355.99x = 817,975,140,027.46 - Step 5: Solve for x
x = 817,975,140,027.46/961,355.99 - Step 6: Final answer
x = 850,855.61
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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.